Go inside one critical moment to discover how a lion is able to bring down its prey, a hulking adult wildebeest.

Two lionesses attack an unfamiliar and aggressive male who approaches their small pride. Watch a scene from the PBS Nature film The White Lions which premieres May 9, 2012.

One of the white cubs, now almost a grown lion, takes on a clan of approaching hyenas in South Africa's Kruger National Park. Watch a scene from The White Lions which premieres May 9, 2012.

The white lion cubs are now 10 months old, and everything is a target for fun. In this video, a small pride plays and bonds in South Africa's Kruger National Park. Watch a scene from The White Lions which premieres May 9, 2012.

PBS Nature follows two white lion cubs as they struggle to survive the dangers they are faced with in South Africa’s Kruger National Park. The White Lions premieres May 9, 2012.

Born Free was a game changer that essentially altered the way we perceive relationships between humans and animals.

In the forbidding Namib Desert, along the Skeleton Coast of Namibia, Dr. Philip (Flip) Stander tracks a mysterious and remarkable quarry: lions.

(Premieres Sundays April 4 and April 11) New technologies reveal what's behind incredible "moments of impact" - when animals come into contact with each other and the world around them.

(Airs Sunday, July 5) Africa's lion population appears to be declining at an alarming rate.