After dark on Kenya's Maasai Mara grasslands, a lioness won't rest until she finds the young cubs she's lost.

As darkness falls, a family of tiny primates in Sulawesi ventures into the jungle to find food while protecting their babies.

A jaguar fights to keep his river home in Brazil as the night brings both challenges and opportunities to hunt.

In the boreal forests of Europe, a young brown bear clashes with wolves—and tries to find a mate beneath the stars.

In Kenya's Maasai Mara, two cheetah brothers attempt a high-speed night hunt with a gang of powerful hyenas on their trail.