Narrator: Cheetahs are the fastest land animal in the ... also makes us particularly well-suited for endurance running. A human's running gait has two main phases: Aerial when both feet are ...

This story appears in the November 2012 issue of National Geographic magazine. Anticipation ripples through the crowd. Fingers tighten around binoculars. Camera lenses snap into focus. No fewer ...

These pathologies can prevent a female from becoming pregnant. Their research changed the way that cheetahs are managed in human care. Now, keepers ensure females have an opportunity to establish ...

Optical illusion pictures trick the human mind and are regarded as one ... Today’s challenge is to find a cheetah hiding in plain sight among the gazelles. You have eagle eyes if you can spot ...

The peregrine falcon is the fastest animal, reaching 389 km/h. The cheetah rules the land, while a tiny mite is the fastest ...

Scientists are working to overcome the conservation threats facing cheetahs like Freya. Due to human conflict, poaching, and habitat and prey-base loss, there are only an estimated 7,000 to 7,500 ...