Tag: Fossils

Earth’s mass extinctions | Peter Ward

So, I want to start out with this beautiful picture from my childhood. I love the science fiction movies. Here it is: “This Island Earth.”...

Fossils: Rocking the Earth

How do we know that two species are related if their common ancestor is no longer alive? How do we know what happened on Earth...

When The Earth Was Purple

Picture the view of Earth from space. Beautiful, right? What colors do you see? Besides the blue of the oceans, the dominant color of our...

How Volcanoes Froze the Earth (Twice)

Imagine a world covered in ice. Estimates vary, but some scientists think at the poles, it could reach negative 130 degrees celsius. And there was...

The Two People We’re All Related To

You have the materials inside you, right now, to unlock the story of your deep, distant ancestry. And also mine. That’s partly because you have...

The Humans That Lived Before Us

For about a million years in the early Pleistocene Epoch — from about 2.4 million to 1.4 million years ago — it was a really...