Wolf eels

A member of the Perciformes order, the wolf eel is a marine species that is unique to the North Pacific Ocean. Wolf eels, which may grow up to seven feet long, often live in couples as mates in underwater rock caves.

One of the most menacing-looking underwater predators is the wolf eels. They have a blank, threatening expression that is horrifyingly scary. Their intimidating moniker comes from the intimidating prey they hunt and consume with their strong jaws and fangs. It has 233 radials but no rays in the anal fin. It only has one dorsal fin, which is made up of 228 to 250 flexible fishbones without soft radius and runs from the head to the end of the body.

With its powerful jaws, this fish with an eel-like appearance feeds on various fish species as well as invertebrates with hard shells (crustaceans, sea urchins, mussels, and clams). In captivity, it has been seen that when given soft food, like squid, they prefer it to hard food, which might harm their rear teeth. The body of a sea urchin may fit completely inside the eel's jaws. They then continue to crush the sea urchins' outer body with their strong bit and pointed teeth. Their strong teeth may break even lobsters or crabs with tough shells. Beware, sea urchins!