Imagine getting one flu shot to last a lifetime. The universal vaccine would protect against strains of flu that haven\'t happened yet and even against bird flu. Researchers are getting closer to making that happen.
Mike Tyson says that the first thing he ever loved in his life was a pigeon. So, when a neighborhood bully killed one of his beloved creatures and threw it in his face, Mike Tyson threw his first punch.
On Animal Planet's "Fooled by Nature," leopards go to great lengths to protect their kills from other predators and scavengers. Their ability to carry three times their weight while climbing trees allows them to hold on to their meal.
The saltwater crocodile is the largest reptile on the planet. The great white shark is the world's largest predatory shark. Saltwater crocodiles usually live in northern Australian rivers and offshore is where a saltwater croc could meet a great white.
Growing to more than 30 feet long and weighing 300 pounds, the anaconda is the largest snake on the planet. Pound for pound, the jaguar is more muscular than a tiger or a lion. Find out which of these creatures rules the jungle in "Animal Face-Off."
The Tyrannosaurus rex was the most feared predator of all the dinosaurs. Learn more about this menacing dinosaur of the Late Cretaceous period on the Discovery Channel's "When Dinosaurs Roamed America."
On Animal Planet's series "Fooled by Nature," chameleons are cold-blooded lizards that can change colors according to their mood. They expand and retract color cells located on their skin which provide an array of colors.
More than 500 pounds of brawn and bad attitude, the lion was born to hunt and fight. An ambush predator with a fierce bite, the Nile crocodile is 18 feet long and 2,500 pounds of muscle and menace. Combatants face-off at the watering hole.
The American alligator uses its formidable jaws to crush turtles, but find out how it will fare against another Florida native. Black bears are incredibly powerful and can be downright nasty as you'll see in this video from "Animal Face-Off."
In this deleted scene, Jeremy is on the lookout for bull sharks in a popular inlet. He doesn't find one, but what he does find is a rare fish that leaps several feet out of the water with no warning whatsoever.