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.

Pioneering special effects recreate the heart-stopping escape of an orphaned baby triceratops from a T. rex.

The carnivorous plant attracts not just insects but mammals too, and for a good reason.

It has mastered its hunting method over millions of years but will it be successful?

Watch how scientists in Japan are rescuing the unborn pups of pregnant sharks killed in fishing nets.

Down to a single pair, the white tern population has benefited from busy roads and planted trees in Honolulu, Hawaii.

Leaf monkeys are close-knit family groups that work together to protect themselves and newborns.

A new monkey bridge in Malaysia provides hope for wildlife navigating fragmented habitats.

The long-standing coexistence between people and deer in Nara faces disruption each autumn as male deer compete for mates.

In the past decade, the dramatic surge in satellite launches has left space cluttered with junk.

Newly discovered behaviour shows a group of lemur mothers inventing a self-medication method involving ants.

The critically endangered Gobi bears undertake arduous journeys of up to 100 miles (160km) to find water.

The dam at Marsh Lake, Minnesota, has created an unexpected opportunity for pelicans.

It takes three years for an otter cub to master the complexities of a successful hunt.

Watch as weaverbirds build intricate nests along the Blue Nile to attract a mate.