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Biology LibreTexts

Chapter 7 - Conservation

  • Page ID
    36185
    • 7.1: Ecological Value
    • 7.2: Threats to Biodiversity
    • 7.3: Preserving Biodiversity
    • 7.4: Extinction
      Extinction (the complete disappearance of a species from Earth) is an important part of the evolution of life on Earth. The current diversity of species is a product of the processes of extinction and speciation throughout the previous 3.8 billion year history of life. There might be 40 million species alive today, but between 5 and 50 billion species have lived at some time during the history of the Earth.

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