Series Detail

Timeline: Life on Earth

This series explains how the diversity of life on Earth has developed over millions of years, through a combination of gradual change and dramatic events. It reinforces student knowledge about the survivability of plants and animals in environments and provides a substantial background on the earth sciences, such as geological processes. It looks in depth at biological adaptation over time, from the first life in the oceans and the dinosaurs, to the first birds and humans and the millions of diverse species alive today. It covers topics such as genetic variation and mutation, the role of environmental change both gradual and catastrophic, competition for resources, the distribution of organisms, the extinction of species, geological and fossil evidence, comparative anatomy, theories of evolution, and scientists at work today.