A fertilized egg somehow manages to build skin, brain, and blood cells within days. But how? New tech called LoxCode is helping us find out.

If we look across the whole of the mammal branch of the tree of life, we find there are many groups of mammals that have ...

Body type refers to the shape of bodies. The three main types are endomorph, mesomorph, and ectomorph. Learn about the traits ...

In TODAY.com's Expert Tip of the Day, a trainer reveals the only body part you should consider working out even on rest days.