The sea robin is a type of fish, but it can fly like a bird, walk like a mammal, and croak like a frog! Kind of. The colorful creature glides above the ocean floor with wide fins that stick out from its body like the wings of an airplane. In front of those wings are a set of leg-like spines the fish uses to pull itself across the sand and feel for food. The spines are actually part of the sea robin’s fins that have evolved to sense prey hiding in the sand. As for the croaking? The fish can make

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