back to search results
Image 38 of 42
< Prev Next >
AH_Emerald Glass Frog male Espadarana prosoblepon humeral hook_4578.jpg
Emerald Glass Frog male {Espadarana prosoblepon}. As can clearly be seen here males have a humeral hook, a bony spine projecting from the humerus that may be used in male to male combat. Osa Peninsula, Costa Rica. May.