American pronghorns evolved speed millions of years before cheetahs, helping movement and survival in changing landscapes.

P ronghorn antelopes are the fastest land animals in North America, clocking speeds of up to 55 miles per hour for a half mile, and 45 miles per hour for longer. Since they mostly run in response to ...

Savanna, a Cincinnati Zoo cheetah, was part of the Cat Ambassador Program.

The fastest land animal in North America is the American pronghorn, and previously, researchers thought it evolved its speed ...

Women's Health may earn commission from the links on this page, but we only feature products we believe in. Why Trust Us? Picture this: You’re training for a race and have been determined to knock a ...

Access our Runner’s World Club marathon plans for free! Fancy giving our members-only half marathon plans a try? For a limited time only, we’re giving customers the chance to unlock 14 days of free ...

These DC heroes might not be the fastest, but they certainly can give the entire Flash Family a run for their money.

Getting back into running after a long break is a slog. Those first few workouts will make you wonder if you ever really enjoyed running in the first place. You can’t catch your breath. You’d swear ...

The findings suggest these ghost elephants survived Angola’s war by never leaving—adapting instead by becoming invisible. “I ...

Here, the best "Would You Rather" questions to ask your friends, family, and complete strangers next time you're looking to ...

(1) BEACH VERSE has solid form and gets the best draw – bright winning chance. (2) BOOZY SUSIE is running well and threatening for the next win. She can go one better. (3) KAMCHATKA and (4) ROSE WOOTT ...

The GBI investigates a murder while the APD looks into a bank robbery in Will Trent. Meanwhile, Faith's new romance takes a ...