The Story of Life Over Time

Evolution is the process by which species change over generations. Natural selection, first described by Charles Darwin, is the mechanism by which favorable traits become more common in a population.

How Natural Selection Works

• Organisms produce more offspring than can survive.
• Individuals with traits better suited to their environment are more likely to survive and reproduce.
• Over time, these traits become more common in the population.

Evidence for Evolution

• Fossil records show changes in species over millions of years.
• DNA comparisons reveal similarities between different organisms.

Studying evolution helps us understand antibiotic resistance, the diversity of life, and how humans have changed over time.