Dolphins live in all the world’s oceans and even some of the largest freshwater rivers. Like whales, they’re considered cetaceans, or marine-dwelling mammals. There are four main families of dolphins, ...

The skull of the ancient dolphin Nihohae matakoi, which had jutting out teeth at the end of its snout, on a black background A bizarre predatory dolphin that lived 25 million years ago and had long, ...

A new species of ancient dolphin has been discovered and it boasts "unique" tusk-like teeth that indicate the existence of a feeding strategy in marine mammals that was previously unknown to science, ...

The snaggletoothed cetacean used teeth projected from its snout to stun prey, much like modern sawfish do. By Jack Tamisiea The waters off New Zealand 25 million years ago were home to early baleen ...

Researchers believe the creature, named Nihohae matakoi, used its horizontal teeth to thrash at prey before gulping it down. When you purchase through links on our site, we may earn an affiliate ...