Did These Giant Sloths Poop Themselves to Death?

How Sloths Went From the Seas to the Trees

Why The Giraffe Got Its Neck

What Happened To The Other Mesozoic Mammals?

When Sloths Were 20 Feet Tall

The Creature That Stumped Darwin

Secrets of the Dinosaurs: The Real Jurassic Americas (Full Episode) | Drain the Oceans

Testing a Hamster's Survival Skills

Do Thunderbeasts Prove Giant Animals Are Inevitable?

The Insane Biology of: Sloths

Where Are All the Medium-Sized Dinosaurs?

The Reign of the Hell Ants

How Ankylosaurs Got Their Clubs

The Largest Sloth in History & Other Insanely Large Animals

When We Met Other Human Species

Drowning: What Happens Moment by Moment

Bee Gees, Lioenl Richie, Eric Clapton, Elton John, Air Supply, Lobo ✌ 100 Greatest Soft Rock Songs

When Giant Lemurs Ruled Madagascar

Relaxing Piano Music: Romantic Music, Beautiful Relaxing Music, Sleep Music, Stress Relief ★122

When Lizards Took Over the World

What If Giant Sloths Didn't Go Extinct?