Why do monarch butterflies store poison in their wings?
Is an ostrich a living dinosaur?
What is an alien species?
Changing Life on Earth takes a look at how and why species slowly change over time. You will learn about Charles Darwin's theory of natural selection, which suggests that an animal with a helpful trait will be better equipped to reproduce than an animal without the trait. The helpful trait will then be passed on to the animal's offspring. The book also supplies intriguing evidence (such as the fossil record) that supports Darwin's theory, and explains Stephen Jay Gould's updated theory that picks up where Darwin left off.
- Earth's living things
- Adaptation and variation
- Changes long ago and today
- Darwin and the theory of evolution
- Evidence for evolution
- Stephen Jay Gould
- History of life on Earth
- Era's of Earth's history
- Human ancestors
- Applying the theory
- Key questions and answers
- Find out more
Author: Eve Hartman, Wendy Meshbesher
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