Evolution - Life Connections

The video explains how all life on Earth shares a common ancestor from over 3.5 billion years ago. It introduces evolution as the process by which species change over generations through mutations and natural selection. The video illustrates speciation, where separated groups of a species adapt to different environments, eventually becoming distinct species. This process adds branches to the tree of life, resulting in the vast diversity of species we see today.

What happens to species when they become separated by environmental changes?

Explain how the tree of life is affected by the evolution of new species.