Tag «bacteria»

Aliens under the Ice – Life on Rogue Planets

Aliens under the Ice – Life on Rogue Planets

Rogue planets are planets that travel through the universe alone. They inhabit the dark and vast space between the stars. Drifting alone through eternal darkness, no light warms their surfaces, and they’re exposed to the freezing cold of outer space. They know no seasons, no days, and no nights, which could give away the passing …

What Made The Black Death (The Plague) so Deadly?

What Made The Black Death (The Plague) so Deadly?

In October of 1347, 12 ships dropped anchor at a Sicilian port. Those who eagerly approached were met with a grisly sight. Almost all aboard were either dead or barely alive, their skin erupting with blackened boils that dripped blood and pus. In horror, the Sicilian authorities demanded the ships set sail, but though they …

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. …