A vestigial trait is something that an organism has that once served a purpose that over time and the course of evolution has ceased to be useful. We see it in goosebumps, which were more effective ...

Our skin and mucous membranes are protected by epithelial cells. This barrier tissue performs its function thanks to specialized structures called junctions. They ensure cell cohesion and regulate ...

Earwax, medically known as cerumen, is a substance naturally produced by glands in the ear canal. It serves critical ...

For most people, their ears are able to process these wide-ranging sounds and make sense of them. However, scientists don't have a full sense of why this happens because they are still working to ...