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In the springtime, male greater sage-grouse (Centrocercus urophasianus) gather in groups, called leks, to compete for females. Males guard a territory a few meters in size (on average) and try to attract a mate by ruffling feathers and making a distinctive noise produced by air ...

The nubian ibex (Capra nubiana) is a desert-dwelling goat that gives birth to young atop tall windswept mesas. The mesa's steep cliff faces offer protection from predators. When the offspring are a few days old they must scale these cliff faces to reach food in ...

In every animal’s life, there comes a time when it must stand on its own two feet, so to speak, and face the world alone. For a few, this happens just moments after birth, with no life lessons from parents to help them, no time ...

Two black snub-nosed monkey brothers play and wrestle among the tree tops, annoying the rest of the troop who are trying to rest. One of the brothers was abandoned by his mother; the other is treated like a prince.

One of the most overlooked ecosystems on the continent consists of a massive sea of sagebrush that stretches across 11 states in the American West. This spartan yet spectacular landscape supports more than 170 species of hardscrabble birds and mammals. And among those that have ...

"Animal Homes: Cities" features a colony of over 40,000 puffins filmed from every angle imaginable. Cinematographer Mark Carroll explains how he got the close-ups using small GoPro cameras and the clever use of puppets.

A juvenile Yunnan snub-nosed monkey is abandoned by his mother while his half-brother becomes the favorite. In order to survive he must depend on the generosity of his other family members.

The Hebrides islands in Northwest Scotland are home to the largest puffin population in the U.K. Every year, the seabirds congregate in huge colonies in order to find a mate and secure the perfect piece of real estate to raise their young.