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  • Stalactites hanging from limestone cave ceiling in karst region. Plitvice Lakes National Park, Croatia. November.
    AH_Stalactites Karst Caves Croatia_2...jpg
  • Stalactites hanging from limestone cave ceiling in karst region. Plitvice Lakes National Park, Croatia. November.
    AH_Stalactites Karst Caves Croatia_2...jpg
  • Giant Cave Woodlouse {Titanethes albus} a true troglobite (living only in caves) that lacks pigmentation. This species is amphibious, moving freely in and out of underground streams and inhabits wet limestone caves in the Dinaric Karst. Slovenia, March.
    AH_Giant Cave Woodlouse Titanethes a...jpg
  • Longhorn Beetle {Morimus funereus} found on logpile in oak woodland where it lays its eggs. Slovenian karst, Slovenia, April.
    AH_Longhorn Beetle Morimus funereus ...jpg
  • Rustyback Fern {Asplenium ceterach (syn. Ceterach officinarum)} growing in limestone karst region. Plitvice Lakes National Park, Croatia. November.
    AH_Rustyback Fern Asplenium ceterach...jpg
  • Giant Cave Woodlouse {Titanethes albus} a true troglobite (living only in caves) that lacks pigmentation. This species is amphibious, moving freely in and out of underground streams and inhabits wet limestone caves in the Dinaric Karst. Slovenia, March.
    AH_Giant Cave Woodlouse Titanethes a...jpg
  • Giant Cave Woodlouse {Titanethes albus} a true troglobite (living only in caves) that lacks pigmentation. This species is amphibious, moving freely in and out of underground streams and inhabits wet limestone caves in the Dinaric Karst. Slovenia, April.
    AH_Giant Cave Woodlouse Titanethes a...jpg
  • Longhorn Beetle {Morimus funereus} found on logpile in oak woodland where it lays its eggs. Slovenian karst, Slovenia, April.
    AH_Longhorn Beetle Morimus funereus ...jpg
  • Longhorn Beetle {Morimus funereus} on logpile in oak woodland where it lays its eggs. Slovenian karst, Slovenia, April.
    AH_Longhorn Beetle Morimus funereus ...jpg
  • Giant Cave Woodlouse {Titanethes albus} a true troglobite (living only in caves) that lacks pigmentation. This species is amphibious, moving freely in and out of underground streams and inhabits wet limestone caves in the Dinaric Karst. Slovenia, April.
    AH_Giant Cave Woodlouse Titanethes a...jpg
  • Rustyback Fern {Asplenium ceterach (syn. Ceterach officinarum)} growing in limestone karst region. Plitvice Lakes National Park, Croatia. November.
    AH_Rustyback Fern Asplenium ceterach...jpg
  • Giant Cave Woodlouse {Titanethes albus} a true troglobite (living only in caves) that lacks pigmentation. This species is amphibious, moving freely in and out of underground streams and inhabits wet limestone caves in the Dinaric Karst. Slovenia, March.
    AH_Giant Cave Woodlouse Titanethes a...jpg
  • Giant Cave Woodlouse {Titanethes albus} a true troglobite (living only in caves) that lacks pigmentation. This species is amphibious, moving freely in and out of underground streams and inhabits wet limestone caves in the Dinaric Karst. Slovenia, April.
    AH_Giant Cave Woodlouse Titanethes a...jpg
  • Rustyback Fern {Asplenium ceterach (syn. Ceterach officinarum)} growing in limestone karst region. Plitvice Lakes National Park, Croatia. November.
    AH_Rustyback Fern Asplenium ceterach...jpg
  • Rustyback Fern {Asplenium ceterach (syn. Ceterach officinarum)} growing in limestone karst region. Plitvice Lakes National Park, Croatia. November.
    AH_Rustyback Fern Asplenium ceterach...jpg
  • Giant Cave Woodlouse {Titanethes albus} a true troglobite (living only in caves) that lacks pigmentation. This species is amphibious, moving freely in and out of underground streams and inhabits wet limestone caves in the Dinaric Karst. Slovenia, April.
    AH_Giant Cave Woodlouse Titanethes a...jpg
  • Giant Cave Woodlouse {Titanethes albus} a true troglobite (living only in caves) that lacks pigmentation. This species is amphibious, moving freely in and out of underground streams and inhabits wet limestone caves in the Dinaric Karst. Slovenia, April.
    AH_Giant Cave Woodlouse Titanethes a...jpg
  • Details of limestone cave roof, Plitvice Lakes National Park, Croatia. November.
    AH_Cave Roof Detail Plitvice Lakes N...jpg
  • Details of limestone cave roof, Plitvice Lakes National Park, Croatia. November.
    AH_Cave Roof Detail Plitvice Lakes N...jpg
  • Details of limestone cave roof, Plitvice Lakes National Park, Croatia. November.
    AH_Cave Roof Detail Plitvice Lakes N...jpg
  • Cave fauna, Slovenia. Photographed in mobile field studio on a black background in situ whilst underground. Olm part of captive breeding program, all other species wild. Species list: Giant Cave Pseudoscorpion (Neobisium spelaeum or N. stygium), Cave Pseudoscorpion (Chthonius cavernarum), Cave-adapted Campodeid (Campodeidae), Giant Cave Woodlouse (Titanethes albus), Cave Shrimp (Troglocaris anophthalmus), Blind Amphipod (Niphargus sp.), Springtail (Collembola), Olm (Proteus anguinus), Cave Beetle (Leptodirus hochenwartii), Cave Cricket (Troglophilus cavicola). Slovenia, March. Composite image.
    AH_Cave Fauna Slovenia_2.jpg
  • Cave Spider {probably Mesostalita nocturna}. This species is a true troglobite (living only in caves) and is highly adapted to the cave environment. Whilst it has no eyes, it is very sensitive to vibrations, which it uses to track down prey. Found low on the wall of a karstic cave, Slovenia. March.
    AH_Cave Spider juvenile {probably Me...jpg
  • Leptodirus hochenwartii, a true troglobite (living only in caves). This beetle is endemic to certain karstic caves in the western Dinaric Alps. Highly adapted to life in the dark, this blind beetle has long sensitive antennae and scavenges dead organic matter. Slovenia, April.
    AH_Cave Beetle Leptodirus hochenwart...jpg
  • Cave Spider {probably Mesostalita nocturna}. This species is a true troglobite (living only in caves) and is highly adapted to the cave environment. Whilst it has no eyes, it is very sensitive to vibrations, which it uses to track down prey. Found low on the wall of a karstic cave, Slovenia. April.
    AH_Cave Spider juvenile {probably Me...jpg
  • Front limb of an Olm or Proteus {Proteus anguinus} that has only three toes whlst the rear limbs have only two. Captive, Slovenia.
    AH_Olm (Proteus anguinus) - Slovenia...jpg
  • Hazel (Corylus avellana) catkins. Slovenia, April.
    AH_Hazel Corylus avellana_6294.jpg
  • Cave Spider {probably Mesostalita nocturna}. This species is a true troglobite (living only in caves) and is highly adapted to the cave environment. Whilst it has no eyes, it is very sensitive to vibrations, which it uses to track down prey. Found low on the wall of a karstic cave, Slovenia. April.
    AH_Cave Spider juvenile {probably Me...jpg
  • Cave Cricket {Troglophilus cavicola} on wall of karstic cave. These are trogloxene invertebrates, spending the day in the safety of the cave and venturing out at night to feed and reproduce. During autumn and winter they hibernate deeper in the cave. Slovenia, April.
    AH_Cave Cricket Troglophilus neglect...jpg
  • The Olm or Proteus {Proteus anguinus} is a species of aquatic salamander and a true troglobite (living only in caves). Highly adapted to the cave environment, Olms generally lack any skin pigmentation and are blind, with atrophied eyes. They have advanced senses of taste, touch and smell as well as being able to detect weak electrical fields, allowing them to navigate the cave environment and locate their prey. They exhibit neoteny, meaning they retain larval characteristics into adulthood such as gills. Captive, Slovenia.
    AH_Olm (Proteus anguinus) - Slovenia...jpg
  • Developing embryos of the Olm or Proteus {Proteus anguinus} attached to the underside of a rock. Captive at Postojna Cave, Slovenia. April.
    AH_Olm (Proteus anguinus) - Slovenia...jpg
  • Assorted speleothems (mineral deposits formed from groundwater) at Postojna Cave, Slovenia.
    AH_ Postojna Cave Slovenia_6001.jpg
  • Olm {Proteus anguinus} juvenile. A species of aquatic salamander and a true troglobite (living only in caves). Highly adapted to the cave environment, Olms generally lack skin pigmentation and are blind, with atrophied eyes. Note that juveniles, as seen here, have more prominent eye spots and pigmentaion, both of which are likely to fade with age. The species has advanced senses of taste, touch and smell as well as being able to detect weak electrical fields, allowing them to navigate the cave environment and locate their prey. They exhibit neoteny, meaning they retain larval characteristics into adulthood such as gills. Captive, Slovenia.
    AH_Juvenile Olm (Proteus anguinus) -...jpg
  • Cave Spider {probably Mesostalita nocturna}. This species is a true troglobite (living only in caves) and is highly adapted to the cave environment. Whilst it has no eyes, it is very sensitive to vibrations, which it uses to track down prey. Found low on the wall of a karstic cave, Slovenia. March.
    AH_Cave Spider juvenile {probably Me...jpg
  • Cave Spider {probably Mesostalita nocturna}. This species is a true troglobite (living only in caves) and is highly adapted to the cave environment. Whilst it has no eyes, it is very sensitive to vibrations, which it uses to track down prey. Found low on the wall of a karstic cave, Slovenia. March.
    AH_Cave Spider juvenile {probably Me...jpg
  • Olm {Proteus anguinus} juvenile. A species of aquatic salamander and a true troglobite (living only in caves). Highly adapted to the cave environment, Olms generally lack skin pigmentation and are blind, with atrophied eyes. Note that juveniles, as seen here, have more prominent eye spots and pigmentaion, both of which are likely to fade with age. The species has advanced senses of taste, touch and smell as well as being able to detect weak electrical fields, allowing them to navigate the cave environment and locate their prey. They exhibit neoteny, meaning they retain larval characteristics into adulthood such as gills. Captive, Slovenia.
    AH_Juvenile Olm (Proteus anguinus) -...jpg
  • Olm {Proteus anguinus} juvenile. A species of aquatic salamander and a true troglobite (living only in caves). Highly adapted to the cave environment, Olms generally lack skin pigmentation and are blind, with atrophied eyes. Note that juveniles, as seen here, have more prominent eye spots and pigmentaion, both of which are likely to fade with age. The species has advanced senses of taste, touch and smell as well as being able to detect weak electrical fields, allowing them to navigate the cave environment and locate their prey. They exhibit neoteny, meaning they retain larval characteristics into adulthood such as gills. Captive, Slovenia.
    AH_Juvenile Olm (Proteus anguinus) -...jpg
  • Olm {Proteus anguinus} juvenile. A species of aquatic salamander and a true troglobite (living only in caves). Highly adapted to the cave environment, Olms generally lack skin pigmentation and are blind, with atrophied eyes. Note that juveniles, as seen here, have more prominent eye spots and pigmentaion, both of which are likely to fade with age. The species has advanced senses of taste, touch and smell as well as being able to detect weak electrical fields, allowing them to navigate the cave environment and locate their prey. They exhibit neoteny, meaning they retain larval characteristics into adulthood such as gills. Captive, Slovenia.
    AH_Juvenile Olm (Proteus anguinus) -...jpg
  • Dog's-tooth Violets (Erythronium dens-canis), Slovenia. March.
    AH_Dogs-tooth Violets Erythronium de...jpg
  • Paper Wasp (Polistes sp.) queen building nest. Slovenia, April.
    AH_Paper Wasp queen Polistes nest_80...jpg
  • Paper Wasp (Polistes sp.) queen building nest. Slovenia, April.
    AH_Paper Wasp queen Polistes nest_79...jpg
  • Globularia punctata flowring in karstic meadow. Slovenia, April.
    AH_Globularia punctata_7635.jpg
  • Bush Cricket nymph (Phaneropteriane, possibly Leptophyes albovittata) feeding on Globularia punctata in karstic meadow. Slovenia, April.
    AH_Cricket Nymph_7585.jpg
  • The Olm or Proteus {Proteus anguinus} is a species of aquatic salamander and a true troglobite (living only in caves). Highly adapted to the cave environment, Olms generally lack any skin pigmentation and are blind, with atrophied eyes. They have advanced senses of taste, touch and smell as well as being able to detect weak electrical fields, allowing them to navigate the cave environment and locate their prey. They exhibit neoteny, meaning they retain larval characteristics into adulthood such as gills. This group was photographed at the entrace to a sink hole connecting to a cave system. Italy. March.
    AH_Olms (Proteus anguinus) - Sloveni...jpg
  • Leptodirus hochenwartii, a true troglobite (living only in caves). This beetle is endemic to certain karstic caves in the western Dinaric Alps. Highly adapted to life in the dark, this blind beetle has long sensitive antennae and scavenges dead organic matter. Slovenia, April.
    AH_Cave Beetle Leptodirus hochenwart...jpg
  • Leptodirus hochenwartii, a true troglobite (living only in caves). This beetle is endemic to certain karstic caves in the western Dinaric Alps. Highly adapted to life in the dark, this blind beetle has long sensitive antennae and scavenges dead organic matter. Slovenia, April.
    AH_Cave Beetle Leptodirus hochenwart...jpg
  • Caver at entrance to karstic cave in the Dinaric Alps, Slovenia. April.
    AH_Karstic Cave Entrance Slovenia_65...jpg
  • Leptodirus hochenwartii, a true troglobite (living only in caves). This beetle is endemic to certain karstic caves in the western Dinaric Alps. Highly adapted to life in the dark, this blind beetle has long sensitive antennae and scavenges dead organic matter. Slovenia, April.
    AH_Cave Beetle Leptodirus hochenwart...jpg
  • Cave Spider {probably Mesostalita nocturna}. This species is a true troglobite (living only in caves) and is highly adapted to the cave environment. Whilst it has no eyes, it is very sensitive to vibrations, which it uses to track down prey. Found low on the wall of a karstic cave, Slovenia. April.
    AH_Cave Spider juvenile {probably Me...jpg
  • Cave Spider {probably Mesostalita nocturna}. This species is a true troglobite (living only in caves) and is highly adapted to the cave environment. Whilst it has no eyes, it is very sensitive to vibrations, which it uses to track down prey. Found low on the wall of a karstic cave, Slovenia. April.
    AH_Cave Spider juvenile {probably Me...jpg
  • Straw or Tubular Stalactites are very deilcate, hollow structures. They form when calcium carbonate or calcium sulfate dissolved in the water comes out of solution and is deposited in a ring around the outside of each successive drop as it hangs from the end of the stalactite. This example was photographed in a karstic cave in Slovenia.
    AH_Straw Tubular Stalactite Cave Slo...jpg
  • The Olm or Proteus {Proteus anguinus} is a species of aquatic salamander and a true troglobite (living only in caves). Highly adapted to the cave environment, Olms generally lack any skin pigmentation and are blind, with atrophied eyes. They have advanced senses of taste, touch and smell as well as being able to detect weak electrical fields, allowing them to navigate the cave environment and locate their prey. They exhibit neoteny, meaning they retain larval characteristics into adulthood such as gills. Captive, Slovenia.
    AH_Olm (Proteus anguinus) - Slovenia...jpg
  • Developing embryos of the Olm or Proteus {Proteus anguinus} attached to the underside of a rock. Captive at Postojna Cave, Slovenia. April.
    AH_Olm (Proteus anguinus) - Slovenia...jpg
  • Developing embryos of the Olm or Proteus {Proteus anguinus} attached to the underside of a rock. Captive at Postojna Cave, Slovenia. April.
    AH_Olm (Proteus anguinus) - Slovenia...jpg
  • Spineless Cave Sphaeromatid / Cave Hedgehog {Monolistra racovitzai}. These troglobiotic isopods forage underwater in caves amongst the sediment for organic matter and are able to curl up into a ball to defend themselves. Here a number of them are feeding on a dead Cave Cricket {Troglophilus cavicola}. Slovenia, April.
    AH_Spineless Cave Sphaeromatid Cave ...jpg
  • Spineless Cave Sphaeromatid / Cave Hedgehog {Monolistra racovitzai}. These troglobiotic  isopods forage underwater in caves amongst the sediment for organic matter and are able to curl up into a ball to defend themselves. Slovenia, April.
    AH_Spineless Cave Sphaeromatid Cave ...jpg
  • Sphodrine Ground Beetle {Laemostenus schreibersii}. This species is classed as a troglophile rather than a true troglobiotic species as it doesn't live exlusively in caves, but also inhabits damp crevices between rocks at the surface. Karstic caves in Slovenia, April.
    AH_Sphodrine Ground Beetle Laemosten...jpg
  • Sphodrine Ground Beetle {Laemostenus schreibersii}. This species is classed as a troglophile rather than a true troglobiotic species as it doesn't live exlusively in caves, but also inhabits damp crevices between rocks at the surface. Karstic caves in Slovenia, April.
    AH_Sphodrine Ground Beetle Laemosten...jpg
  • Cave Shrimp {Troglocaris anophthalmus}, a true troglobite (living only in caves) lacking eyes or pigmentation. This species lives in lakes and streams in karstic caves. Slovenia, April.
    AH_Cave Shrimp Troglocaris anophthal...jpg
  • Cave Shrimp {Troglocaris anophthalmus}, a true troglobite (living only in caves) lacking eyes or pigmentation. This species lives in lakes and streams in karstic caves. Slovenia, April.
    AH_Cave Shrimp Troglocaris anophthal...jpg
  • Blind Amphipod {Niphargus sp.}, a true troglobite (living only in caves) lacking eyes or pigmentation. Slovenia, April.
    AH_Blind Amphipod Niphargus - Sloven...jpg
  • Hacquetia epipactis flowering in woodland. Slovenia, April.
    AH_Hacquetia epipactis SLovenia flo...jpg
  • Detail of naturally-formed tufa dam. A series of these dams retain the large lakes that spread throughout Plitvice Lakes National Park. Tufa is a type of limestone, formed by the precipitation of carbonate minerals from water. Here moss {Cratoneuron commutatum, Bryum ventricosum) is continually being encased in calcium carbonate deposits, gradually adding to the mass of the tufa dam over which the waterfall flows. Plitvice Lakes National Park, Croatia. November.
    AH_Calcified Moss Tufa Dam waterfall...jpg
  • Photographer silhouetted in entrance of limestone cave, Plitvice Lakes National Park, Croatia. November.
    AH_Limestone Cave Plitvice Lakes Nat...jpg
  • Greater Horseshoe Bat (Rhinolophus ferrumequinum) roosting in cave. Croatia. November.
    AH_Greater Horseshoe Bat Rhinolophus...jpg
  • Greater Horseshoe Bat (Rhinolophus ferrumequinum) roosting in cave. Croatia. November.
    AH_Greater Horseshoe Bat Rhinolophus...jpg
  • Leptodirus hochenwartii, a true troglobite (living only in caves). This beetle is endemic to certain karstic caves in the western Dinaric Alps. Highly adapted to life in the dark, this blind beetle has long sensitive antennae and scavenges dead organic matter. Slovenia, April.
    AH_Cave Beetle Leptodirus hochenwart...jpg
  • Leptodirus hochenwartii, a true troglobite (living only in caves). This beetle is endemic to certain karstic caves in the western Dinaric Alps. Highly adapted to life in the dark, this blind beetle has long sensitive antennae and scavenges dead organic matter. Slovenia, April.
    AH_Cave Beetle Leptodirus hochenwart...jpg
  • Leptodirus hochenwartii, a true troglobite (living only in caves). This beetle is endemic to certain karstic caves in the western Dinaric Alps. Highly adapted to life in the dark, this blind beetle has long sensitive antennae and scavenges dead organic matter. Slovenia, April.
    AH_Cave Beetle Leptodirus hochenwart...jpg
  • Greater Horseshoe Bat (Rhinolophus ferrumequinum) roosting in cave. Slovenia. November.
    AH_Greater Horseshoe Bat Rhinolophus...jpg
  • Leptodirus hochenwartii, a true troglobite (living only in caves), dead on cave floor with fungus protruding. This beetle is endemic to certain karstic caves in the western Dinaric Alps. Highly adapted to life in the dark, this blind beetle has long sensitive antennae and scavenges dead organic matter. Slovenia, April.
    AH_Cave Beetle Leptodirus hochenwart...jpg
  • Greater Horseshoe Bat (Rhinolophus ferrumequinum) roosting in cave. Slovenia. November.
    AH_Greater Horseshoe Bat Rhinolophus...jpg
  • Cave Spider {probably Mesostalita nocturna}. This species is a true troglobite (living only in caves) and is highly adapted to the cave environment. Whilst it has no eyes, it is very sensitive to vibrations, which it uses to track down prey. Found low on the wall of a karstic cave, Slovenia. March.
    AH_Cave Spider juvenile {probably Me...jpg
  • Cave Spider {probably Mesostalita nocturna}. This species is a true troglobite (living only in caves) and is highly adapted to the cave environment. Whilst it has no eyes, it is very sensitive to vibrations, which it uses to track down prey. Found low on the wall of a karstic cave, Slovenia. March.
    AH_Cave Spider juvenile {probably Me...jpg
  • Cave Spider {probably Mesostalita nocturna}. This species is a true troglobite (living only in caves) and is highly adapted to the cave environment. Whilst it has no eyes, it is very sensitive to vibrations, which it uses to track down prey. Found low on the wall of a karstic cave, Slovenia. March.
    AH_Cave Spider juvenile {probably Me...jpg
  • Leptodirus hochenwartii, a true troglobite (living only in caves). This beetle is endemic to certain karstic caves in the western Dinaric Alps. Highly adapted to life in the dark, this blind beetle has long sensitive antennae and scavenges dead organic matter. Slovenia, April.
    AH_Cave Beetle Leptodirus hochenwart...jpg
  • Leptodirus hochenwartii, a true troglobite (living only in caves). This beetle is endemic to certain karstic caves in the western Dinaric Alps. Highly adapted to life in the dark, this blind beetle has long sensitive antennae and scavenges dead organic matter. Slovenia, April.
    AH_Cave Beetle Leptodirus hochenwart...jpg
  • Olm {Proteus anguinus} juvenile. A species of aquatic salamander and a true troglobite (living only in caves). Highly adapted to the cave environment, Olms generally lack skin pigmentation and are blind, with atrophied eyes. Note that juveniles, as seen here, have more prominent eye spots and pigmentaion, both of which are likely to fade with age. The species has advanced senses of taste, touch and smell as well as being able to detect weak electrical fields, allowing them to navigate the cave environment and locate their prey. They exhibit neoteny, meaning they retain larval characteristics into adulthood such as gills. Captive, Slovenia.
    AH_Juvenile Olm (Proteus anguinus) -...jpg
  • Olm {Proteus anguinus} juvenile. A species of aquatic salamander and a true troglobite (living only in caves). Highly adapted to the cave environment, Olms generally lack skin pigmentation and are blind, with atrophied eyes. Note that juveniles, as seen here, have more prominent eye spots and pigmentaion, both of which are likely to fade with age. The species has advanced senses of taste, touch and smell as well as being able to detect weak electrical fields, allowing them to navigate the cave environment and locate their prey. They exhibit neoteny, meaning they retain larval characteristics into adulthood such as gills. Captive, Slovenia.
    AH_Juvenile Olm (Proteus anguinus) -...jpg
  • Leptodirus hochenwartii walking across a wer flow stone. This beetle is a true troglobite, living only in caves. It is endemic to certain karstic caves in the western Dinaric Alps. Highly adapted to life in the dark, this blind insect has long sensitive antennae and scavenges dead organic matter. Slovenia, March.
    AH_Leptodirus hochenwartii cave beet...jpg
  • Hepatica nobilis flowering in woodland. Slovenia, March.
    AH_Hepatica nobilis Slovenia_1909.jpg
  • Paper Wasp (Polistes sp.) queen building nest. Slovenia, April.
    AH_Paper Wasp queen Polistes nest_79...jpg
  • Southern Festoon (Zerynthia polyxena) Slovenia, April.
    AH_Southern Festoon Zerynthia polyxe...jpg
  • Bush Cricket nymph (Phaneropteriane, possibly Leptophyes albovittata) feeding on Globularia punctata in karstic meadow. Slovenia, April.
    AH_Cricket Nymph_7624.jpg
  • Pheasant's-eye Narcissus (Narcissus poeticus ssp. radiiflorus) flowering in meadow. Slovenia, April.
    AH_Pheasants-eye Narcissus Narcissus...jpg
  • Pheasant's-eye Narcissus (Narcissus poeticus ssp. radiiflorus) flowering in meadow. Slovenia, April.
    AH_Pheasants-eye Narcissus Narcissus...jpg
  • Aremonia agrimonoides flowering on woodland floor. Slovenia, April.
    AH_Aremonia agrimonoides_6374.jpg
  • Aremonia agrimonoides flowering on woodland floor. Slovenia, April.
    AH_Aremonia agrimonoides_6366.jpg
  • The Olm or Proteus {Proteus anguinus} is a species of aquatic salamander and a true troglobite (living only in caves). Highly adapted to the cave environment, Olms generally lack any skin pigmentation and are blind, with atrophied eyes. They have advanced senses of taste, touch and smell as well as being able to detect weak electrical fields, allowing them to navigate the cave environment and locate their prey. They exhibit neoteny, meaning they retain larval characteristics into adulthood such as gills. This individual was photographed at the entrace to a sink hole connecting to a cave system. Italy. March.
    AH_Olm (Proteus anguinus) - Slovenia...jpg
  • Straw or Tubular Stalactites are very deilcate, hollow structures. They form when calcium carbonate or calcium sulfate dissolved in the water comes out of solution and is deposited in a ring around the outside of each successive drop as it hangs from the end of the stalactite. This example was photographed in a karstic cave in Slovenia.
    AH_Straw Tubular Stalactite Cave Slo...jpg
  • Leptodirus hochenwartii, a true troglobite (living only in caves). This beetle is endemic to certain karstic caves in the western Dinaric Alps. Highly adapted to life in the dark, this blind beetle has long sensitive antennae and scavenges dead organic matter. Slovenia, April.
    AH_Cave Beetle Leptodirus hochenwart...jpg
  • Lesser Horseshoe Bat (Rhinolophus hipposideros) roosting in cave. Such species that visit caves but that do not complete their whole lifecycle there are known as trogloxenes. Slovenia, April.
    AH_Lesser Horseshoe Bat Rhinolophus ...jpg
  • Leptodirus hochenwartii, a true troglobite (living only in caves). This beetle is endemic to certain karstic caves in the western Dinaric Alps. Highly adapted to life in the dark, this blind beetle has long sensitive antennae and scavenges dead organic matter. Slovenia, April.
    AH_Cave Beetle Leptodirus hochenwart...jpg
  • Leptodirus hochenwartii, a true troglobite (living only in caves). This beetle is endemic to certain karstic caves in the western Dinaric Alps. Highly adapted to life in the dark, this blind beetle has long sensitive antennae and scavenges dead organic matter. Slovenia, April.
    AH_Cave Beetle Leptodirus hochenwart...jpg
  • Leptodirus hochenwartii, a true troglobite (living only in caves). This beetle is endemic to certain karstic caves in the western Dinaric Alps. Highly adapted to life in the dark, this blind beetle has long sensitive antennae and scavenges dead organic matter. Slovenia, April.
    AH_Cave Beetle Leptodirus hochenwart...jpg
  • Leptodirus hochenwartii, a true troglobite (living only in caves). This beetle is endemic to certain karstic caves in the western Dinaric Alps. Highly adapted to life in the dark, this blind beetle has long sensitive antennae and scavenges dead organic matter. Slovenia, April.
    AH_Cave Beetle Leptodirus hochenwart...jpg
  • Leptodirus hochenwartii, a true troglobite (living only in caves). This beetle is endemic to certain karstic caves in the western Dinaric Alps. Highly adapted to life in the dark, this blind beetle has long sensitive antennae and scavenges dead organic matter. Slovenia, April.
    AH_Cave Beetle Leptodirus hochenwart...jpg
  • Cave Spider {probably Mesostalita nocturna}. This species is a true troglobite (living only in caves) and is highly adapted to the cave environment. Whilst it has no eyes, it is very sensitive to vibrations, which it uses to track down prey. Found low on the wall of a karstic cave, Slovenia. April.
    AH_Cave Spider juvenile {probably Me...jpg
  • The Olm or Proteus {Proteus anguinus} is a species of aquatic salamander and a true troglobite (living only in caves). Highly adapted to the cave environment, Olms generally lack any skin pigmentation and are blind, with atrophied eyes. They have advanced senses of taste, touch and smell as well as being able to detect weak electrical fields, allowing them to navigate the cave environment and locate their prey. They exhibit neoteny, meaning they retain larval characteristics into adulthood such as gills. Captive, Slovenia.
    AH_Olm (Proteus anguinus) - Slovenia...jpg
  • Detail of an Olm or Proteus {Proteus anguinus} showing the three-toed front limb and gills. This species is a true troglobite (living only in caves) and is highly adapted to the cave environment. They generally lack any skin pigmentation and are blind, with atrophied eyes. They have advanced senses of taste, touch and smell as well as being able to detect weak electrical fields, allowing them to navigate the cave environment and locate their prey. They exhibit neoteny, meaning they retain larval characteristics into adulthood such as gills. Captive, Slovenia.
    AH_Olm (Proteus anguinus) - Slovenia...jpg
  • The Olm or Proteus {Proteus anguinus} is a species of aquatic salamander and a true troglobite (living only in caves). Highly adapted to the cave environment, Olms generally lack any skin pigmentation and are blind, with atrophied eyes. They have advanced senses of taste, touch and smell as well as being able to detect weak electrical fields, allowing them to navigate the cave environment and locate their prey. They exhibit neoteny, meaning they retain larval characteristics into adulthood such as gills. Captive, Slovenia.
    AH_Olm (Proteus anguinus) - Slovenia...jpg
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