During a recent night dive off the coast of Bali, Indonesia, a diver named Emeric Benhalassa noticed something odd.

A fish appeared to be walking across the seafloor on a pair of legs.

Benhalassa, a French cook who dives in his free time, suspected it was a type of stingfish, which are among the most venomous fish on Earth.

"The stingfish came to meet me probably thanks to the light," he says by email. It was "bizarre and pretty ... I thought that this could please the Internet."