Tag: evolution

Why Pets Have Surprisingly Small Brains

This video was sponsored by 23andMe. Hi, this is Emily from MinuteEarth. Domestication has puppified dogs, fluffified sheep, and spotified horses – but there’s a less obvious physical change that virtually all domesticated animals share: shrunken brains. Duck brains have shrunk by about 15%, cat brains by 30%, and pig

Chordates – CrashCourse Biology #24

Next time someone asks you who you think you are, just give them the facts. You’re a mammalian amniotic tetrapodal sarcopterygiian osteichthyan gnathostomal vertebrate cranial chordate. Yeah, it’s a mouthful. And in order to understand what it means, you’re going to have to understand the most complex group of animals

CARTA: The Role of Hunting in Anthropogeny – Margaret Schoeninger Alyssa Crittenden Richard Wrangham

CARTA: The Role of Hunting in Anthropogeny – Margaret Schoeninger Alyssa Crittenden Richard Wrangham

– [Narrator] We are the paradoxical ape. Bipedal, naked, large brained, long the master of fire, tools, and language, but still trying to understand ourselves. Aware that death is inevitable. Yet filled with optimism. We grow up slowly. We hand down knowledge. We empathize and deceive. We shape the future

The Immune System Explained I – Bacteria Infection

The Immune System Explained I – Bacteria Infection

Every second of your life, you are under attack. Billions of bacteria, viruses, and fungi are trying to make you their home. So our bodies have developed a super complex little army with guards, soldiers, intelligence, weapons factories, and communicators to protect you from…well…dying For this video, let’s assume the

Attack of the Super Bugs

Attack of the Super Bugs

What potential disasters keep you up at night? Meteor strikes? Super Volcanos? World War Three? World war Z? Those are all pretty scary and we didn’t even mention climate change but there’s one other immediate terrifying, scientific problem that rises above the rest… Superbugs I’m not talking about giant spiders