Recent Videos

  • PETM – Unearthing Ancient Climate Change – Science Bulletins – AMNH

    PETM – Unearthing Ancient Climate Change – Science Bulletins – AMNH

    Scientists have a few hypotheses but no theory has yet emerged about a significant bio-geological event that happened fifty-five million years ago. What we know for sure was that there was a sudden, enormous influx of carbon that has dissolved in the ocean and atmosphere. As atmospheric CO2 content increased, the average global surface temperature rose 5°C to 9°C (9°F to 16°F). This global warming event is called the Paleocene-Eocene Thermal Maximum (PETM) and lasted for 170,000 years. Events triggered […]

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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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  • City Farms – KQED/QUEST (2013)

    City Farms – KQED/QUEST (2013)

    On the forefront of Good Food Revolution Will Allen of Milwaukee demonstrates a working Urban Farm. He defines his effort as establishing oasis in a “food desert”. The program prepared by QUEST gives a brief biographical sketch and highlights from the project. Following a significant career in basketball, Allen decided to go back to farming. In 2008 he was granted a prestigious MacArthur Foundation “genius” grant for his influential contributions to the urban agricultural practices. “The Great Migration transformed the […]

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  • 48 Cantones: The Mayan Forest – Thomas & Julian Moll-Rocek (2014)

    48 Cantones: The Mayan Forest – Thomas & Julian Moll-Rocek (2014)

    In their documentary, Thomas & Julian Moll-Rocek explore the Mayan Cosmovision. For Meso-Americans this is a worldview that integrates the structure of space and rhythms of time into a unified whole. In Guatemala’s western mountains, in the state of Totonicapán, a large community forest has prospered for centuries adjacent to densely populated valleys. The Mayan forest cover the hills and the mountain ridge. The management of local resources by the Mayan community provides a counter-argument for the ‘tragedy of the […]

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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 Deeper Creek – The Watchable Waters of Appalachia

    A Deeper Creek – The Watchable Waters of Appalachia

    Ecofocus Film Festival of Athens GA featured a number of short documentaries including Hidden Rivers of Appalachia filmed on location in Conesauga River by Freshwaters Illustrated. Like birdwatching, riverwatching could be a great immersive activity and have the potential to become a citizen science project. A Deeper Creek shows us how this could be done. Similar to organizing a BioBlitz, snorkeling in a river can generate a lot of informative observations. Rivers have a rich body of natural history and […]

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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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  • Whale Shark Aggregation in Belize – Cristiana & Alain Bontemps (2009)

    Whale Shark Aggregation in Belize – Cristiana & Alain Bontemps (2009)

    External fertilization is a wasteful process but still enables survival of many aquatic species. For external fertilization to be successful certain prerequisites are needed: high population numbers, aggregation of these large groups and synchronous release of gametes. Animals are great resource maximizers. Once they discover a high value resource they will exploit it as efficiently as possible. Gametes (sperms and eggs) released during external fertilization of large groups of fish such as the Jack are extremely nutritious for filter feeders […]

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  • Conserving Colombia’s Cotton-Top Tamarin – Federico Pardo (2011)

    Conserving Colombia’s Cotton-Top Tamarin – Federico Pardo (2011)

    About the size of a squirrel, the cotton-top tamarin (Saguinus oedipus) is a New World primate. It has a characteristic shock of white hair on it’s head. Males and females do not vary in size (not sexually dimorphic). The cotton-top tamarin was declared endangered in 1973 following the exportation of 20,000-40,000 tamarins to the United States for use in biomedical research. Cotton-top tamarins were found to spontaneously develop colorectal cancer and for this reason served as an ideal model for […]

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  • Climate Science in Action – Earth Focus / Link TV (2014)

    Climate Science in Action – Earth Focus / Link TV (2014)

    We have a very dynamic planet. Throughout it’s geological evolution ice sheets grew and shrunk many times. This process still continues each year through a number of rather complex interactions between land, atmosphere and ocean. Climate science is working hard to measure, document and understand these interactions both on land and from orbit. Satellite missions launched in 1990s produced some very informative estimates about polar regions. Scientists are now collaborating to detail these observations from land measuring the mass balance […]

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  • Göbekli Tepe – National Geographic (2012)

    Göbekli Tepe – National Geographic (2012)

    Discovered by renowned German archeologist Klaus Schmidt (sadly passed away in 2014), Göbekli Tepe changed our view on how recent cultural evolution of humanity migh have unfolded. Civilization as we hypothesized was a sequential progression in the following manner: Agriculture > Sedentary societies > Religion Early documentaries such as The Ascent of Man by Charles Bronowski is an example of the way our thinking was organized. Göbekli Tepe now suggests the order of religion and agriculture may need a chess […]

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  • Salt Marsh Watch – Dean Hardy

    Salt Marsh Watch – Dean Hardy

    How will rising sea levels affect coastlines? As this is written, rate of sea level rise is about 3 milimeters per year worldwide. The main video above is a quick “snapshot” of the tidal flow in a Georgia salt marsh replete with smooth cordgrass (Spartina alterniflora) and marsh fiddler crabs (Uca spp.) scurrying about over the mud. The perspective of the camera, between two and three feet above the marsh sediment, can be thought of as from that of a […]

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  • Brown Bears during Salmon Run in Katmai National Park – Live from Alaska

    Brown Bears during Salmon Run in Katmai National Park – Live from Alaska

    Live streaming video by Ustream [Both video streams have no sound and will be off air when it’s night time in Alaska] (Ursus arctos) are Caniform (dog-like) mammals. Except the polar bear (Ursus arctos horribilis) who is strictly a carnivore all other brown bears (Grizzly, Kodiak and Siberian brown bear) are omnivores and biologically are the same species. This means they can interbreed when species barriers gets lifted. As Arctic sea ice disappears polar bear habitat shrinks and thus they […]

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