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 ...

The body is a glorious thing. Humans have evolved to have straight fingers rather than curved, pelvises designed to support upright walking and brains that have tripled in bulk. But evolution also has ...

The story of human evolution in ancient past is said to be written in our modern bodies. In his book “Descent of Man,” Charles Darwin talks about vestigial structures. A vestigial structure is a body ...

An unsung appendage in the female body, which has long been considered useless, may actually be essential for ovary development and fertility, a new mouse study finds. This structure, called the rete ...

Animals such as dogs and rabbits perk up or twitch their ears in response to sound. This movement focuses sound on the animal's eardrum, which is important for accurately identifying and processing ...