Be Smart

The Mystery of Earth's Disappearing Giants

Special | 21m 29s

Loading Player...

We investigate a mystery. Millennia ago, while much of the Earth was covered in ice, enormous animals lived on every continent except Antarctica. Species like ground sloths, mammoths, gomphotheres, sabertooth cats, even wombats the size of cars! Today, Africa is the only continent where these megafaunas still exist. Why? What happened to the rest of Earth’s giants?

Aired: 09/16/21 | Rating: NR

More Specials

Browse all Specials


Browse all Episodes

Explore Digital Studios Shows

Sign into PBS

By creating an account, you acknowledge that PBS may share your information with our member stations and our respective service providers, and that you have read and understand the Privacy Policy and Terms of Use.

Confirm Your Local Station

To help you find your favorite shows and great local content, we've selected a PBS station in your area.

Please confirm that WETA is your preferred local station, or choose another station below.