Candiru Fish - Painful and Bizarre

Candiru (English and Portuguese) or candirú (Spanish), also known as cañero or toothpick fish, are a number of genera of parasitic freshwater catfish in the family Trichomycteridae; all are native to the Amazon River. Although lurid anecdotes of attacks on humans abound, there is only one documented case of a candiru entering a human orifice. In this instance, the victim had a candiru swim into his urethra as he urinated while thigh-deep in a river.

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