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The Holocene extinction event

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Uploaded by on Jun 28, 2009

The Holocene extinction event is the widespread, ongoing mass extinction of species during the modern Holocene epoch. The large number of extinctions span numerous families of plants and animals including mammals, birds, amphibians, reptiles and arthropods; a sizeable fraction of these extinctions are occurring in the rainforests. This extinction event is sometimes referred to as the sixth extinction following the previous five extinction events. Between 1500 and 2006 CE, 784 extinctions have been documented by the International Union for Conservation of Nature and Natural Resources. However, since most extinctions go undocumented, scientists estimate that during the 20th century, between 20,000 and two million species actually became extinct, but the precise total cannot be determined more accurately within the limits of present knowledge. Up to 140,000 species per year (based on Species-area theory) may be the present rate of extinction based upon upper bound estimating.

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Uploader Comments (ThorsEssentials)

  • The focus is almost always on a mammal or bird. Save the polar bears! Save the wolves! Save the eagles!

    But who would rush to the defense of a snail, or a fish?

  • @dragonridley Unfortunately so very true.

  • Why does this video blame the entire human race for the action of the minority?

  • No blame, just a listing of facts. Nothing to be done about things that have happened. But perhaps we can learn.

Top Comments

  • shame on us

Video Responses

This video is a response to Help Endangered Species!
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All Comments (41)

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  • good vid. hard for me to watch. I had to stop at 1:27

  • @JongaLife

    I don't think you can pin it down to any moment. I see a species as being like a tree; you can define the moment it falls, but there is no single moment to define when it grows.

  • I wonder if new animales are being created at this precise moment... and how much the other animals in the plante are evolving... we also need some universal population control and recycling

  • @ThorsEssentials

    It's a guilt trip video and I am getting sick of them. I have no guilt for things I played no part in. Read Darwin's "On the Origins of Species". Extinctions are a necessary part of evolution. 99% of all species that ever lived are extinct.

  • @KLRJUNE

    Indifference is worse than evil.

  • Reputable Thylacine sightings have continued in Tasmania to this day, and many believe that a small but sustainable population still exists.

  • @GTXMAN

    Well you did respond laughing boy.

  • So ur saying people killed all the megafauns?

  • @KLRJUNE Minority? lol,i wouldnt even respond

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