Biology
What forces shape life's journey through time?
Quick fact
Evolution occurs when inherited traits become more or less common in populations over time.
Why this is interesting
Every species on Earth is the result of billions of years of change and adaptation.
Read the full explanation
Understanding What forces shape life's journey through time?
Natural selection favours traits that improve survival and reproduction in a specific environment.
A deeper explanation
Evolution does not have a goal or direction. It is a continuous process driven by genetic variation, environmental pressures, and reproduction.