Vestigial Structures

The video discusses vestigial structures in humans, such as the appendix, tailbone, and wisdom teeth, which are remnants of evolutionary history. Charles Darwin's theory on vestigial structures is explained, highlighting how these features were once useful to our ancestors. Examples like goose bumps and the nictitating membrane are also covered, illustrating how these structures have lost their original functions over time.

What evolutionary changes have occurred regarding wisdom teeth in modern humans?

What is the nictitating membrane and how is it related to vestigial structures?