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  • Chromosome Evolution in Plants

    Chromosome Evolution in Plants

    Accidents happen all the time and sometimes living cells fail to divide properly. During cell division the genetic material that was supposed to be distributed equally between two cells may all stay in one of the cells. If this happens in body cells a cancerous tumor may develop or the cell may die. If it happens in an embryo at the very early stages of development at rare occasions these individuals may survive to maturity and may even reproduce to […]

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  • Chasing Ice (2012)

    Chasing Ice (2012)

    The footage featured above is an excerpt from the documentary “Chasing Ice”. It is so incredibly impressive that it had to be posted by itself. For the first time a glacier calving event of this massive scale is recorded by the filmmakers. On May 28, 2008, Adam LeWinter and Director Jeff Orlowski filmed a historic breakup at the Ilulissat Glacier in Western Greenland. The calving event lasted for 75 minutes and the glacier retreated a full mile across a calving […]

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  • Acid Oceans – Science Bulletins – AMNH

    Acid Oceans – Science Bulletins – AMNH

    Since the beginning of the industrial revolution a quarter of the carbon that has been released into the atmosphere was absorbed by the oceans. As a result the acidity of the oceans has increased by %30. Increasing acidity makes it corrosive dissolving the calcium shells of marine organisms. Ocean acidification will affect fisheries by disrupting the very base of the food-webs. Sea urchins, hermit crabs, lobsters, coral polyp prefer ocean water with a pH of about 8.2 in order to […]

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  • Keeling’s Curve: The Story of CO2 – Science Bulletins – AMNH

    Keeling’s Curve: The Story of CO2 – Science Bulletins – AMNH

    Keeling’s Curve: The Story of CO2 was produced by Laura Allen for the Science Bulletins of the American Museum of Natural History. Science Bulletins is a production of the National Center for Science Literacy, Education, and Technology (NCSLET), part of the Department of Education at the American Museum of Natural History. Ice cores drilled from the glaciers, Greenland and the Antarctic have shown that carbon dioxide levels in the atmosphere is tightly linked to the average temperature of the Earth. […]

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  • A Spawning Aggregation in a Bluehead Chub Nest  – Brandon Peoples (2014)

    A Spawning Aggregation in a Bluehead Chub Nest – Brandon Peoples (2014)

    This short observation shows a spawning aggregation containing seven species of fish in a Bluehead chub (Nocomis leptocephalus) nest in Toms Creek, New River Drainage in Blacksburg, Virginia. These species are Mountain redbelly dace (Chrosomus oreas), White shiner (Luxilus albeolus), Rosefin shiner (Lythrurus ardens), Rosyside dace (Clinostomus funduloides), Central stoneroller (Campostoma anomalum) and Crescent shiner (Luxilus cerasinus). Bluehead chub with it’s impressive nesting behavior provides a rich natural history for ecologists. Brandon Peoples who recorded this short observation is a […]

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