We've heard about pygmy pigs—why not pygmy mammoths? Fossil evidence proves their existence, but the dilemma is figuring out where they lived. A video describes different theories on their evolution and migration.

According to a popular movie series, de-extincting ancient species may not be the best idea! But, is it possible? Explore the prospect through a video that is part of a larger playlist covering mammals. The narrator compares the physical...

If you could, would you bring back mammoths or mastodons? What about resurrecting other species? Viewers consider some of the ethical and practical considerations involved in de-extinction.

A 40,000-year-old baby mammoth was discovered frozen in Siberian permafrost in 2007. Most of her body was still intact, allowing paleontologists an unparalleled opportunity to study this extinct animal. Aired May 1, 2009 [12:29]

Scientists have been able to collect DNA from a piece of mammoth hair, and they hope this will help them understand more about other ancient animals. Aired Sep. 28, 2007 [17:49]

Researchers examining DNA evidence gathered from soil samples say that the woolly mammoth may have survived for thousands of years longer than the fossil record indicates.