Fish defy death to rub up against great white sharks. Here’s why.

Fish defy death to rub up against great white sharks. Here’s why.

Fish hold their mates close and their enemies closer … but only simply because they have to have to exfoliate. 

Scientists recently discovered that diverse species of fish use sharks as scrub brushes by pushing up from the sea predator’s scaly bodies to get rid of parasites and other irritants. Though this unsafe behavior has been observed just before, it wasn’t obvious just how widespread it was.