AH_Raft Spider Dolomedes fimbriatus_7874.jpg
Raft Spider female {Dolomedes fimbriatus} on Heathland pool, Surrey, UK. October. The multicoloured film results from chemoautotrophic bacteria that oxidise iron and manganese ions in the water, with the colours being caused by thin film interference.
© Alex Hyde 4279x2853 / 6.5MB
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