Most animals stick to four legs. It feels normal, almost automatic in nature. But then there are a few surprising ones that ...

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 ...

One of the biggest questions in human evolution asks why humans became habitually bipedal about 7 million years ago. Most of our primate cousins do well walking quadrupedally and switch to two legs ...

Dinosaurs like tyrannosaurs and velociraptors famously walked on two legs. But they weren’t the only bipedal prehistoric ...

A joint dinosaur survey conducted by Okayama University of Science (OUS) and the Institute of Paleontology, Mongolian Academy of Sciences, has uncovered one of the largest hadrosaurid footprints ever ...

A new study released today in Scientific Reports announced the surprising discovery of abundant, well-preserved 110-120-million-year-old footprints, belonging to a large bipedal ancestor of modern-day ...

Scientists in Germany have discovered the fossilized remains of a previously unknown ancient ape with an unusual way of moving through the treetops. By standing upright on two feet and grasping ...

The early humans who walked the Earth nearly 3.7 million years ago were not walking alone. Fossil footprints in Tanzania reveal that two human species once lived in the same place at the same time.

That birds are the largest on the ground, they can not fly like birds, but the 'Ostrich' that has the fastest speed among the bipedal animals on the ground is penetrating into the hall of Makuhari ...