This episode is supported by 23andMe Covering a 50 square mile area in Siberia in the Arctic Circle, you'll find a place called Pleistocene Park.
Its human creators have replaced its forests with grasslands to restore the landscape to what it looked like 2 million years ago.
It's currently populated by large mammals like horses and bison to give it that "last Ice Age" feel, but to make it REALLY authentic, they just need ONE more thing... [Intro] Around 4,500 years ago, on an island in the Arctic Ocean, the world's last mammoth died a lonely death.
And now they only live on in our imaginations.
But do they really have to be gone forever?
Humans aren't completely responsible for killing off mammoths, but we are responsible for plenty of other extinctions, and that list is quickly growing.
These species are extinct, but in many cases, their DNA is still around, in places like museum drawers and buried in the ground.
Today, scientists think de-extinction might be the answer to saving our planet's lost biodiversity.
De-extinction is more complicated than it looks in the movies.
DNA holds the instructions for an organism's assembly, life, and reproduction.
