GCSE Biology - What Are Fossils? What Fossils Tell Us About Extinct Species #78

The video tutorial explains fossils as remnants of long-dead organisms, highlighting their role in understanding extinct species and evolution. It describes three main fossil formation processes: gradual mineral replacement, casts and impressions, and preservation. The tutorial also discusses the incomplete fossil record and various causes of species extinction, such as environmental changes, new predators, diseases, and catastrophic events.

What are some reasons that can lead to the extinction of a species?

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How do catastrophic events contribute to species extinction?

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