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March 30, 2014 – 5:29 am | Comments Off

MP3 Guardian science correspondent Ian Sample meets the celebrated cosmologist Max Tegmark to discuss his latest book, Our Mathematical Universe. In an extended interview, Max talks about our scientific understanding of the structure of the …

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Submitted by on September 29, 2009 – 9:47 pm

Biological species emerge and disappear in the natural course of evolution. There have been times in the Earth’s past when mass extinctions have occurred, causing a large number of species to disappear in a short time. This is generally believed to have happened due to external pressures on ecosystems, or sudden shocks and catastrophic events. We are currently going through such a period due primarily to the impact humans have had on the environment, and on plant and animal habitats. Some scientists believe that 50% of existing species may become extinct in the next 100 years.

NSRW_Dodo_560-310Credit: Wikimedia Commons

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