The human body has different parts that help us do things like walk ... You have a head and a neck. You have arms, elbows, hands and fingers. You have a chest and a tummy. You have legs, knees ...

Your body is walking proof of evolution, but some parts have grown unnecessary over time. Here are five useless body parts left over from evolution. Follow Tech Insider: On Facebook More from ...

We often forget that every gene, every protein and every cell is composed of even smaller parts – namely metabolites. Metabolites are the smallest constituents of the human body. They include ...