If you’re wondering why some of them stand or hop around on one leg, you’re not alone. Science can’t always provide a clear answer as to why a bird chooses to behave a certain way.

However, not all perching birds stand on one leg. This is because when they puff up their feathers to trap insulating air during cold weather, their shorter legs are often covered like a duvet.

A hiker with only one leg successfully climbed a steep ladder to scale a hill. Footage shows the determined mountaineer Akhmad Ahror Al Khadad hopping step by step to propel himself upwards in East ...

The one-legged bot can jump to a height of over three feet (over a meter) – thrice its own height – and even ricochet off a wall. For Salto's latest trick, the hopping bot leapt onto a ...

If you can’t comfortably stand on one leg for 10 seconds, your body may be trying to tell you something. “Being able to stand on one leg is one of the most predictive measurements for aging ...