First Tool Users Were Sea Scorpions?

Monday, April 13, 2009 - 18:07 in Paleontology & Archaeology

Odd fossil tracks suggest the ancient sea beasts used other creatures' shells to help them breathe on land, a new study says.

Read the whole article on National Geographic

More from National Geographic

Latest Science Newsletter

Get the latest and most popular science news articles of the week in your Inbox! It's free!

Check out our next project, Biology.Net