How do many snailfish species anchor themselves to resist strong currents on the ocean floor?

Answer

Pelvic fins modified into an adhesive disc

A significant number of snailfish species have evolved their pelvic fins to form a nearly circular adhesive disc, which functions like a powerful suction cup to attach firmly to rocks or the seabed.

How do many snailfish species anchor themselves to resist strong currents on the ocean floor?
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