The Dire Wolf, a fierce and powerful alpha predator in the savage ice age, was larger and more powerful than any modern-day wolf. Explore why it suddenly perished while the smaller, weaker Gray Wolf survived.

With 8-inch-long teeth set in a jaw that opened about twice as wide as a lion's, how did the sabre-toothed tiger use its power and skill?

Standing at 13 feet and weighing over a tonne, this North American native was a predator like no other. Its speed and power made it the most feared carnivore of its time.

Scientists attempt to recreate the Megalodon, a ferocious 50-ton shark that terrorised sea creatures around the world millions of years ago.

After the dinosaurs died out 65 million years ago, the large, flightless ` Terror Birds' became the top predators of South America. Discover the most unusual hunters the Earth has ever seen.

With lethal jaws capable of killing in seconds, the Hyaenodon was one of history's deadliest beasts. Will its razor jaws ever be matched?