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Hi, I’m John Green. Welcome to Crash Course Big History. Today we’re gonna be traversing the evolutionary epic – the great story of magnificent beasts, terrifying predators, quite a lot of extinctions, and countless varieties of evolutionary forms. It’s the ultimate epic – millions upon millions of species playing out a drama that has so …
When you think of the world’s most fierce, numerous, and dominant meat-eating mammals, you probably think of animals like the big cats, or wolves, or bears. But long before any of those animals existed, there was another predator that prowled North America. And it was neither cat nor dog nor bear, but it was their …
(gentle music) – [Narrator] Like buried treasure, they lie hidden from sight. Echoes of an ancient past, they whisper secrets and tell tales once lost to time. Fossils are remnants or impressions of ancient organisms that are naturally preserved in stone. While there are hundreds of fossil types, they are often grouped into two major …
Corn currently accounts for more than one tenth of our global crop production. The United States alone has enough cornfields to cover Germany. But while other crops we grow come in a range of varieties, over 99% of cultivated corn is the exact same type: Yellow Dent #2. This means that humans grow more Yellow …
Hey everybody. This is Dr. Chris Masterjohn of Chris MasterJohnphd.com, and this is a special episode of Mastering Nutrition where Dr. Paul Saladino, Carnivore MD came on my podcast, Mastering Nutrition, to talk more about the carnivore diet. So stay tuned for carnivore diet part two. This is Mastering Nutrition with Chris Masterjohn, take control …
Corn currently accounts for more than one tenth of our global crop production. The United States alone has enough cornfields to cover Germany. But while other crops we grow come in a range of varieties, over 99% of cultivated corn is the exact same type: Yellow Dent #2. This means that humans grow more Yellow …
Hi, I’m Emily Graslie, and welcome to Crash Course Big History, where today we’ll be discussing a tweak in our evolutionary traits that led us to innovate so rapidly in the last 250,000 years. Natural selection is no slouch at innovating. We’ve moved from a planet populated by single cell organisms just 700 million years …
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