Tag «evolution»

How diving mammals evolved underwater endurance HD

How diving mammals evolved underwater endurance HD

Elite mammalian divers such as the sperm whale can hold their breath for well over an hour while they hunt in the depths of the oceans while land mammals such as humans barely last a couple of minutes underwater without gasping for air. An international team led by Dr Michael Berenbrink at the University of …

Cannibalism in the animal kingdom – Bill Schutt

Cannibalism in the animal kingdom – Bill Schutt

In the deserts of the American Southwest, spadefoot toad tadpoles hatch in tiny oases. Until they develop into toadlets, they can’t survive outside of water, but these ponds are transient and quickly evaporate. The tadpoles are in a race against the clock to grow up before their nurseries disappear. So nearly overnight, some of the …

CARTA: The Role of Hunting in Anthropogeny – Briana Pobiner Rebecca Bliege Bird Jill Pruetz

CARTA: The Role of Hunting in Anthropogeny – Briana Pobiner Rebecca Bliege Bird Jill Pruetz

(rumbling) (bleeping) (lively piano music) – [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 from …

Underwater astonishments | David Gallo

Underwater astonishments | David Gallo

We’re going to go on a dive to the deep sea, and anyone that’s had that lovely opportunity knows that for about two and half hours on the way down, it’s a perfectly positively pitch-black world. And we used to see the most mysterious animals out the window that you couldn’t describe: these blinking lights …

Juan Enriquez: Will our kids be a different species?

Juan Enriquez: Will our kids be a different species?

Translator: Timothy Covell Reviewer: Morton Bast All right. So, like all good stories, this starts a long, long time ago when there was basically nothing. So here is a complete picture of the universe about 14-odd billion years ago. All energy is concentrated into a single point of energy. For some reason it explodes, and …

Human Evolution: Crash Course Big History #6

Hi, I’m John Green. Welcome to Crash Course Big History Project where today we’re going to talk about the Planet of the Apes films. – What’s that? Apparently, those were not documentaries. But there was an evolutionary process that saw primates move out of East Africa and transform the earth into an actual planet of …