Vestigial structures take many forms: organs, behaviors, and even biochemical processes. Their defining characteristic is they are structures that a species has retained, but no longer serve their ...

It seems we actually share something in common with whales, as it turns out our tailbones, or coccyx, are also very important for the surrounding muscles, tendons, and ligaments. This vestigial ...

Darwin would, of course, ... Like any vestigial structure, we retain pieces of this genetic material because it really isn't causing any trouble: Century after century, ...

Like wisdom teeth or the appendix, a vestigial tail is believed to be a leftover of human evolution. While uncommon, it’s possible to be born with one. We’ll tell you what causes it, what it ...

This structure, called the rete ovarii, was first discovered in humans over a century ago, but until now, it was considered a so-called vestigial structure — not crucial in adult female anatomy ...