Some call it Alaska's version of spring break -- the annual Arctic Man Ski and Sno-Go Classic. For four days, the remote...
Images from episodes of Alaska State Troopers.
Wild Justice
Scientists head to a graveyard in China to further search for answers to the question of dinosaur color.
Dr. Manning unlocks the mysteries of the most perfectly preserved T. Rex skull ever collected.
A quest to create the most scientifically accurate model of a dinosaur ever made.
Just how big was the biggest dinosaur ever to walk the face of the earth?
Dinosaurs managed to survive injuries, infections and diseases that would kill most predators today.
Phil reveals new evidence of quirky movements that adult and baby Titanosaurs made 70-million years ago.
See amazing megafish from around the globe.
Meet the biggest, oddest and most ferocious underwater creatures on the planet.
See images from Crocodile Ganglands on Nat Geo WILD.
The Mali elephant takes on the longest elephant migration on Earth; in 300-mile circle around the heart of Mali.
Up to 24 million golden jellyfish of Jellyfish Lake undergo a one-kilometer long daily migration.
At up to 40 feet long and 20 tons, the largest fish in the sea lives entirely on the very tiniest of creatures.
Spectacular rain forest decorate Borneo, the third largest island in the world.
Pacific walruses travel according to the movement of the ice. As the ice expands in the winter, they move south.
Each year, a small band of pronghorn follows the longest migration in the Americas below the Arctic.
The migration of the Makgadikgadi Zebras is the second largest zebra migration in the world.
Sperm whales are the world’s largest toothed whales and are one of the deepest diving cetaceans.