Already a WLIW21 member? You may have an unactivated WLIW21 Passport member benefit. Check to see.
Season 2 Episode 21 | 7m 32s
All of today’s big cat species evolved less than 11 million years ago and yet their evolutionary history remains an almost total mystery. But scientists have recently discovered a major clue about the origins of the big cats, one that could provide a whole new starting place for solving this puzzle.
Aired: 05/31/19
Video has closed captioning.
How Earth's First, Unkillable Animals Saved the World
How Earth's First, Unkillable Animals Saved the World
When We Met Other Human Species
We all belong to the only group of hominins on the planet today. But we weren’t alone.
How Evolution Works (And How We Figured It Out)
We’ll try to explain how evolution actually works and how we came to understand it.
The Hellacious Lives of the "Hell Pigs"
There is some evolutionary method to the anatomical madness that is the "hell pig."
The History of Climate Cycles (and the Woolly Rhino) Explain
The History of Climate Cycles (and the Woolly Rhino) Explain
Now Showing
The Ghostly Origins of the Big Cats
Scientists have recently discovered a major clue about the origins of the big cats.
The Mystery Behind the Biggest Bears of All Time
The Mystery Behind the Biggest Bears of All Time
The ability to make and use fire has fundamentally changed the arc of our evolution.
When Giant Scorpions Swarmed the Seas
Sea scorpions thrived for 200 million years, coming in a wide variety of shapes and sizes.
