The Theory
The thing that acts on species and drives evolution.
What is a selective pressure?
Charles Darwin first observed the finches here that appear to have a common ancestor but due to different selective pressures on the islands have evolved into unique species.
What is Galapagus Island?
A type of evidence for evolution where similar structures in animals may provide information about common ancestors.
What is comparative anatomy?
A type of evidence for evolution that compares the similarities of embryos of different species while developing in the womb.
What is comparative embryology?