Do sharks really have teeth on their eyeballs? Not quite - but one species does have tooth-like scales on its eyes. A paper published in 2020 reported that the eyeballs of the whale shark, the world's ...

Most carnivores have teeth to grasp and eat prey, so marine animals with teeth are not uncommon. Sharks, dolphins, eels, whales, many fish species, and marine mammals like seals and sea lions have ...

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

To say spotted ratfish are unusual is an understatement. Related to sharks, they abound in the inky dark depths of the Puget Sound. Armed with a venomous fin, they swim gracefully along the sea floor ...

It's not what you do, it's how readily you do it. Rapid evolutionary change might have more to do with how easily a key innovation can be gained or lost rather than with the innovation itself, ...

A juvenile spotted ratfish. These deep-sea fish are named for their long, rat-like tails. Gareth J. Fraser, University of Florida Deep in the ocean, you can find a strange fish with teeth not just in ...

Add Yahoo as a preferred source to see more of our stories on Google. A CT scan of the tooth-like odontode structure from Astrapsis, an ancient jawless vertebrate fish shows that its tubules (shown in ...