Giraffes: The Forgotten Giants

Veteran naturalist Sir David Attenborough tells the story of a remarkable group of gorillas, from his first encounter in the '70s to the present day.

In the remote and forgotten wilderness of Lake Natron, in northern Tanzania, one of nature's last great mysteries unfolds: the birth, life and death of a million crimson-winged flamingos.

Follows the story of "Grizzly Man" Timothy Treadwell and what the thirteen summers in a National Park in Alaska were like in his attempt to protect the grizzly bears. The film is full of unique images and a look into the spirit of a man who sacrificed himself for nature.

Through deeply personal interviews with her siblings and an examination of the photographs, letters, and belongings left behind, Mariska assembles a new portrait of her mother Jayne Mansfield, an extraordinary and complex woman.

Lupita Nyong'o narrates a documentary about Peanuts and its creator, Charles M. Schulz. Famous fans—including Drew Barrymore, Kevin Smith, and Al Roker—share its influence on them, and a new animated story finds Charlie Brown on a quest.

An exploration of technologically developing nations and the effect the transition to Western-style modernization has had on them.

This documentary starring climber Alex Honnold and famous biologist Bruce Means document their expedition to the South American sky islands in search of new species and discoveries. Follows elite climber Alex Honnold and a world-class climbing team led by National Geographic Explorer and climber Mark Synnott on a grueling mission deep in the Amazon jungle as they attempt a first-ascent climb up a 1000 foot sheer cliff.

From the heights of her modeling fame to her tragic death, this documentary reveals Anna Nicole Smith through the eyes of the people closest to her.

Over 35 years after Bob Lazar's revelations, this documentary exposes secrets of a facility the government still denies. Featuring Lazar's testimony, recreations, and new evidence, it reopens a case that continues to spark global curiosity

In Angola's mist-shrouded highlands, three KhoiSan master trackers embark on a spiritual quest to rediscover the legendary "ghost elephants" of Lisima, creatures presumed lost but remembered in ancestral trance, ritual, and memory.

Just two years away from turning 30, participants in Michael Apted's documentary series are facing serious questions of identity and purpose, wondering whether they've found their place in the world.

In an intimate and joyful story of love in the face of loss, celebrated poets Andrea Gibson and Megan Falley find strength—and unexpected hilarity—in what might be their final year together.