Earth

When breeding season arrives for the mega herd of Pachyrhinosaurus, the battles are fierce and unforgiving.

Discover how a Pacific Northwest creator crafts serene viral clips that attract huge audiences worldwide.

A young Albertosaurus knows she can't take down a giant alone but she can guide her prey to the matriarch.

In a pack of carnivorous Albertosaurus, tensions flare when they haven't eaten for over a week.

Explorer Lucy Shepherd uncovers a host of predators, including the deadly Bushmaster snake, in Guyana’s Amazon rainforest.

Sloth bears are the world's deadliest bear and for humans, outrunning them is usually not an option.

Compared to their European counterparts, US train stations can often feel like dingy basements.

With its sharp claws, speed, and the ability to work in groups, the Utahraptor is a finely tuned killing machine.

After outsmarting an agile prey in the river, Sobek must defend his catch from another Spinosaurus.

Fishing cats are well adapted to water, but these kittens might need a bit more practice to feed themselves.

Rescued from an illegal wildlife trader in Laos, a tiny sun bear cub gets a new chance at life in a sanctuary.

The fastest animal on land rarely uses its top speed to capture prey. So how does a cheetah catch its target?

On the east coast of the US, alligators and humans have learned to co-exist, most dramatically in golf courses.

Watch as a T.rex and fully-grown Triceratops face off in a brutal stand-off that shakes the earth.

River dolphins in Mocajuba in Brazil are known to play with people without guarantee of reward.  

These scavenger lizards have found a way to seek food in an urban metropolis like Bangkok.

Miss too many opportunities and these young Arctic foxes could become too weak to survive.

Disturbing the sleep of a Spinosaurus is a dangerous move, unless you're his family.

Watch a funny fall turn serious as mum Cyclone steps in to protect her calf from a clumsy big brother.

They are one of the few animals to master tool use, and this clever pup needs to learn how in order to be less dependent on its mother.