Rise of Mammals

Team up with Ackerley the Acanthostega to travel back 66 million years to the Tertiary and Quaternary periods of prehistoric Earth, when mammals came to dominate the planet. Many of them are now extinct—but not the most powerful of all: humans! Discover the facts, fossils, and fun science of behind the intriguing mammals of this time period, including killer pigs, the largest land mammal ever, and...