Browsing by Subject "complex multicellular life"

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    Extinctions: Past and Present Week 1 - Importance of knowing the past
    (2017-03-17) Chinsamy-Turan, Anusuya
    In this video, Professor Anusaya Chinsamy-Turan reflects on the information presented in previous videos. She highlights points about the immense age of the Earth, the historical and continued success of microbes, as well as the evidence of increasing complexity over time through examining the fossil record. This is video 7 in Week 1 of the Extinctions: Past and Present MOOC.
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    Extinctions: Past and Present Week 1 - Life on earth
    (2017-03-17) Chinsamy-Turan, Anusuya
    In this video, Professor Anusaya Chinsamy-Turan discusses the history of life on earth. She begins by discussing the earliest evidence of life, which dates back to about 3.5 billion years ago. She then goes on to discuss the evolution of complex multicellular life, the Cambrian explosion, and the movement of plants and animals onto land. She also discusses some of the unanswered questions about the history of life, such as the cause of the Cambrian explosion.