Life Through Geologic Time

Description

This video focuses on life present on Earth over the past 600 million years. This life changed with time and evolved from simple organisms to more complex organisms. This evolution of life is seen in the fossil record. Evolution of life is thought to have progressed from invertebrates (shell fish), to vertebrates (fish), to amphibians, to reptiles, to birds and mammals. Each era was dominated by a different form of organism.

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