When Meen first saw Rocket wobbling in a garden, she didn’t believe he was real — a cat walking on just two legs. But the moment she met him, she knew: this little guy was born to defy limits. Rocket ...

In zoology, the term “bipedal” refers to animals that use only two legs for walking. There are several groups of modern species considered habitual bipeds, meaning two-legged walking is their normal ...

A big difference between humans and other apes is the ability to stride easily on two feet. A new analysis of fossil bones shows that adaptations for bipedal walking go back 7 million years. Walking ...