Tag Archives: science

Food Webs and Energy Pyramids: Bedrocks of Biodiversity

Captions are on! TO turn off, click the CC button at bottom right. Follow the amoebas on Twitter (@amoebasisters) and Facebook! When we were little, we loved nature shows. One reason was because we didn’t have cable and it was one of the few things we actually got a TV signal for that didn’t require… Read More »

Cave Art 101 | National Geographic

– [Narrator] Wooly mammoths, step bison, and other large mammals once roamed alongside people across Eurasia. Tens of thousands of years later, we may have glimpse into this Ice Age world through the cave art left behind by early humans. (tinkling music) Around 400 art-filled caves and shelters predominately located in France and Spain have… Read More »

How Your Toothbrush Became a Part of the Plastic Crisis | National Geographic

(tapping) – [Narrator] Hopefully you know this already but … that’s a toothbrush. So are these. And the one thing they have in common: they’re all plastic. But here’s something you might not know. This routine has been around for a millennia. And back then, they used chewing sticks. (sticks rattling) Fast forward a bit… Read More »

Inside the Dark World of Captive Wildlife Tourism | National Geographic

– (sighs) Jesus. We came behind the stadium where the elephants perform and we found this juvenile elephant. He had gaping red wounds at his temple. He also has a broken leg. The other one is chained up. He looks totally emaciated. Skin and bones. And this is the worst shape I’ve seen an elephant… Read More »

Greg Asner: Ecology from the air

Technology can change our understanding of nature. Take for example the case of lions. For centuries, it’s been said that female lions do all of the hunting out in the open savanna, and male lions do nothing until it’s time for dinner. You’ve heard this too, I can tell. Well recently, I led an airborne… Read More »

Conservation and Restoration Ecology: Crash Course Ecology #12

For the past 12 weeks, we’ve been investigating our living planet together, and learning how it works on many levels; how populations of organisms interact, how communities thrive and ecosystems change, and how humans are wrecking the nice, perfectly functioning systems Earth has been using for hundreds of thousands of years. And now it’s graduation… Read More »

Ancient Mesopotamia 101 | National Geographic

(soft music) – [Narrator] The story of writing, astronomy, and law. The story of civilization itself begins in one place. Not Egypt, not Greece, not Rome. But Mesopotamia. Mesopotamia is an exceedingly fertile plain situated between the Tigris and the Euphrates Rivers. For five millennia, the small strip of land situated in what is today… Read More »

Coral Reefs 101 | National Geographic

(gentle music) – [Narrator] Coral reefs, their bright, vivid colors can be seen in tropical ocean waters around the globe. Beyond their brilliant appearance lies a hidden significance. Coral are animals. Though they may look like colorful plants, coral are, in fact, made up of tiny animals called polyps. These invertebrates can range from the… Read More »

Brain 101 | National Geographic

– [Narrator] The brain is the most complex organ in the human body. As part of the nervous system, the brain coordinates all of the body’s function. In adult humans, the brain is a three-pound gelatinous mass of fat and protein. It’s comprised of four main regions: the cerebrum, the cerebellum, the brainstem, and the… Read More »

Eclipse 2017: One Nation Under The Sun | NPR

Oh my God! There it is! Incredible! Oh my God! [screams] Oh my God! Good morning! It’s Monday, August 21, 2017. The Great American Eclipse now just hours away… This is purely American, right? This is an American eclipse. … has brought us in some eclipse donuts! They feel it’s a once in a lifetime… Read More »