Dec 8, 2025
Uncharismatic Fact of the Day
Move over, Wolverine-- there's a new X-man in town! The wolverine pleco is a species of fish named for the unique set of sharp, extendable claws tucked under its gills. These claws are used defensively, lashing out at potential predators when they get too close.
(Image: Top and bottom views of a wolverine pleco (Hopliancistrus wolverine) specimin, by Juan Marcos Mirande.)