Tag «bacteria»

A Brief History of Life: Survival Is Hard

A Brief History of Life: Survival Is Hard

Where did life come from, and how did it come to…this? The path from bacteria to baseball wasn’t simple. In this miniseries, we’re going to explore the evolution of life on Earth. It’s been a wild journey, with plenty of twists and turns, and there were lots of times we almost didn’t make it through. …

Disease! Crash Course World History 203

Disease! Crash Course World History 203

Hi, I’m John Green, this is Crash Course World History, and today we’re going to talk about a subject that makes me profoundly uncomfortable: disease. This is a tough subject for me personally because I’m a bit of a hypochondriac, but to be fair, my fears are kind of rational. I am afraid that my …

The Mystery of the Eocene’s Lethal Lake

The Mystery of the Eocene’s Lethal Lake

47 million years ago, the world was a hothouse. Lush jungles covered much of the globe, stretching far from the equator, and they were rife with mammals. This was life in the Eocene Epoch. And around a quiet lake in what’s now Germany, a typical scene was unfolding in late spring. Crocodiles patrolled the waters. …