Add Yahoo as a preferred source to see more of our stories on Google. How big they are: From 5 to 32 feet (1.5 to 10 meters) long, depending on the species Dolphins live in almost every ocean, except ...

From its long, flexible trunk to its loud trumpeting sounds, there’s a lot to admire about an elephant. But how much do you know about these massive creatures? Where do they live? How big can they get ...

It is venomous, can sense electricity and glows under UV light. Now researchers have uncovered something else remarkable ...

Discover why bison are unique to America’s grasslands and how WWF is working to restore large herds across the Northern Great ...

The shift from lizard-like sprawl to upright walking in mammals wasn’t a smooth climb up the evolutionary ladder. Instead, it was a messy saga full of unexpected detours. Using new bone-mapping tech, ...

Monotremes are a class of mammals that are known as egg laying mammals; they are a special group of mammals that lactate to ...

"Prehistoric World" is a new book by Aaron Woodruff, the museum's collection manager for vertebrate paleontology. It includes profiles and illustrations of prehistoric mammals such as Livyatan ...

Researchers are fiercely debating whether claims about the origins of mammals result from a bias toward Northern Hemisphere fossil sites. By Anthony Ham In 1996, paleontologists made a startling ...

Dolphins live in almost every ocean, except most tend to avoid the cold waters in the Arctic and around Antarctica. Some also live in rivers, including the Amazon River in South America and the Ganges ...