Adaptation of birdcage plant, puffball and star fungi
How can air be used to disperse seeds and spores?
Evolution of life on Earth
Introduction to evolution from cloning of single-celled organisms to sexual reproduction.
Natural and artificial selection in racehorses
Advantages of selective breeding in race horses.
Natural selection and survival of the fittest
What did Darwin mean by the terms 'natural selection' and 'survival of the fittest'?
The evolution of the eye
Explains how the diversity of eyes seen in nature evolved.