The piranha edged the cory into a corner, opened wide and chomped down once, twice, ultimately 10 times—only for the catfish to wriggle free and drift off unfazed, if a little miffed.

An extensive investigation of South American Corydoras catfish, reveals that catfish communities, although containing almost identically colored and patterned fish, could actually contain three or ...

Luckily Shona, a peripatetic veterinary surgeon, flew into action cutting Stephen's throat to remove the Cory catfish - who amazingly survived the ordeal.