For a long time, scientists believed the first humans to arrive in the Americas soon killed off these giant ground sloths ...

Mastodon, that giant cartoon mammal that's been rampaging across the internet this week, is not the product of a Silicon Valley start-up. Instead, the social networking app that's been touted as a ...

From giant fossil mammals to mysterious moths, uncover the colourful stories behind some of the Museum's most fascinating specimens. This is the first mastodon fossil from Britain ever described. It ...

Newspapers trumpeted the discovery, calling the find—long known to Native Americans—“the Sylvan Mastodon” and ... The astounding trees we now know as giant sequoias can live for more ...