Add Yahoo as a preferred source to see more of our stories on Google. The ancestors of humans started making tools about 3.3 million years ago. First they made them out of stone, then they switched to ...

Human babies arrive with 100 extra bones for the same reason birth is the most dangerous event in mammalian life. Both facts ...

An international collaboration study reveals how evolution and locomotion patterns, such as bipedalism, shaped bone structures through proteins present in the bone matrix. The findings of the study, ...

One of the most important steps in the evolution of modern mammals was the development of highly sensitive hearing. The middle ear of mammals, with an eardrum and several small bones, allows us to ...