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

Medically reviewed by Jenny Sweigard, MD Seek Emergency Care Sudden numbness or weakness in your face, arm, or leg is a ...

The left hemisphere controls movement for the right side of the body, while the right hemisphere ... be more involved than the other in specific parts of a larger mental operation.

The motor cortex located on the left side of the brain controls movement ... brain's motor cortex is devoted to controlling specific body parts. The reason that some body parts are depicted ...