Tag: John Green

Social Influence: Crash Course Psychology #38

Social Influence: Crash Course Psychology #38

By Micah Moen 100 Comments August 24, 2019

If someone in a position of authority told you to like, stop walking on the grass, you would stop walking on the grass, right? And if they told you to help someone’s grandma cross the street, or pick up your dog’s poop, or put your shoes on before you go into a store, you’d probably […]

Are 1,000,000 Species Really Going Extinct? What Can We Do About It?

Are 1,000,000 Species Really Going Extinct? What Can We Do About It?

By Micah Moen 14 Comments August 24, 2019

Welcome back to Nature League! One of the ways that I try to think and feel about life on Earth is through the lens of current events and news reports. Something as simple as looking at trends for key search terms online can give me an idea of the way that stories and themes are […]

Why Megalodon (Definitely) Went Extinct

Why Megalodon (Definitely) Went Extinct

By Micah Moen 100 Comments August 22, 2019

About 8 million years ago, a little baleen whale was swimming in the warm coastal waters of Peru. It was only about 3 or 4 meters long, about the size of a Beluga whale, and while it filtered mouthfuls of plankton-rich water, it was unaware that just below it swam a predator. Like the great […]

When the Synapsids Struck Back

When the Synapsids Struck Back

By Micah Moen 100 Comments August 22, 2019

Thanks to CuriosityStream for supporting PBS Digital Studios It’s 252 million years ago, and the world is on the cusp of the worst disaster it would ever experience. 70 percent of all life on land is about to vanish. But one of the very-lucky very-few that will survive is an animal called Thrinaxodon. It’s about […]

Endocrine System, Part 1 – Glands & Hormones: Crash Course A&P #23

Endocrine System, Part 1 – Glands & Hormones: Crash Course A&P #23

By Micah Moen 100 Comments August 18, 2019

I’ve invited you all here today because I wanted to talk to you about some ugly stereotypes that are going around. I’ve been hearing a lot of unfair, unseemly, and unscientific generalizations being made lately. And they mostly have to do with sex. And your hormones. People have a nasty habit of equating “hormones” with […]

Utilitarianism: Crash Course Philosophy #36

Utilitarianism: Crash Course Philosophy #36

By Micah Moen 100 Comments August 17, 2019

Should Batman kill the Joker? If you were to ask the Dark Knight himself, with his hard-and-fast no-killing rule, he’d say absolutely not. Actually, in fact, he would say: [Batman voice] “Absolutely not.” When you think about it, dude is pretty Kantian in his ethics. Regardless of what Joker does, there are some lines that […]

When Birds Had Teeth

When Birds Had Teeth

By Micah Moen 100 Comments August 15, 2019

In 1861, a man working in a Bavarian quarry discovered a fossil that would change the way we think about birds. The fossil was of a single, beautiful feather, exquisitely preserved in limestone from the Jurassic. But the feather turned out to belong to an animal that was unlike any other bird humans had ever […]

Personal Identity: Crash Course Philosophy #19

Personal Identity: Crash Course Philosophy #19

By Micah Moen 100 Comments August 13, 2019

Crash Course Philosophy is brought to you by Squarespace. Squarespace: share your passion with the world. Who is The Doctor? Is it this guy? Or this one? How about him? As any good Whovian knows, the answer is yes, all of them. But, also, wait: No. In the show Doctor Who, each incarnation of The […]

The Giant Bird That Got Lost in Time

The Giant Bird That Got Lost in Time

By Micah Moen 100 Comments August 12, 2019

I usually stand here and tell you about exotic creatures that you’re never gonna see — extinct animals with unusual features, or strange body plans, or sizes that seem preposterous compared to the animals we know today. But there are some organisms that live among us, even though they’re really better suited to life in […]

How the Squid Lost Its Shell

How the Squid Lost Its Shell

By Micah Moen 100 Comments August 12, 2019

500 million years ago, back in the Cambrian Period, a pioneering little mollusk floated up off the ocean floor. It had developed a way to use its defensive shell for a whole new purpose — buoyancy. It turned out that by filling its shell with gas, this mollusk could literally reach new heights, gaining a […]