Pufferfish are among the most unique fish in the sea—and sometimes in freshwater too! As their name suggests, pufferfish can ...

Drum fish are given their unique name not because they have drums in their bodies but because they let out croaker sounds produced by their swim bladders. There are around 275 species of drum fish, ...

Roughly 425 million years ago, in the warm seas over what is now southern China, there lived a meter-long bony fish with jaws full of clusters of spiky teeth. Long extinct, this predatory fish ...

These days, all fish have teeth. The shapes of their teeth vary according to diet, ranging from the little pegs of goldfish ...

Researchers studied the male spotted ratfish's tooth-covered forehead appendage, which flares out to ward off rivals and grip onto females. Reading time 3 minutes Spotted ratfish are scaleless, rabbit ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. The sensitive ...

Add Yahoo as a preferred source to see more of our stories on Google. Fossils of the ancient armored fish Romundina gagnieri reveal that early vertebrates had teeth growing on dental plates rather ...