Recent Videos

  • Crippled Cranefly Orchid (Tipularia discolor) (2014)

    Crippled Cranefly Orchid (Tipularia discolor) (2014)

    Crippled Cranefly Orchid (Tipularia discolor). Recorded on August 9th 2014, Georgia State Botanical Garden, Athens, GA, USA. The genus Tipularia has three species. Crippled cranefly orchid (Tipularia discolor) is the only species found in North America. The other two species are Asian found in the Himalayas and Japan. Tipularia discolor grows in organic humus-rich soils of closed canopy oak-pine forests in the Eastern United States. It is protected as Threatened, Endangered, or Rare in Florida, Massachusetts, Michigan, New York, Pennsylvania. […]

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  • The Antikythera Mechanism: The Two-Thousand-Year-Old Computer – Mike Beckham (2012)

    The Antikythera Mechanism: The Two-Thousand-Year-Old Computer – Mike Beckham (2012)

    Antikythera Mechanism is one of the best demonstrations of human intellect attempting to understand nature systematically. The contraption is most certainly a very complex device. It is an impressively accurate “analog model” of our then earth-centric universe. Science gives us prediction power and Antikythera Mechanism is an excellent example for how astronomical observations can be defined mathematically to reconcile lunar and solar calendars and predict eclipses with hourly accuracy using 27 gear pieces. It uses the Metonic Cyle first implemented […]

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  • Virtual Reconstruction of the Antikythera Mechanism – Michael Wright & Mogi Vicentini (2009)

    Virtual Reconstruction of the Antikythera Mechanism – Michael Wright & Mogi Vicentini (2009)

    Trying to predict future is one of the characteristics of Human nature which ultimately gave us the scientific method. Antikythera Mechanism is one of the best demonstrations of human intellect attempting to understand nature systematically. The contraption is most certainly a very complex device. It is an impressively accurate “analog model” of our then earth-centric universe. The Antikythera Mechanism was built like a clock. Trains of interlocking gearwheels controlled the movements of a minimum of seven pointers perfectly tracking the […]

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  • How Chameleons Change Color? (2015)

    How Chameleons Change Color? (2015)

    Long projectile tongue, independently movable eyes and rapid color change. Chameleons are indeed very interesting animals. Reproductively mature chameleon males rapidly switch on bold threatening colors when confronting another rival male. All this time the the leading hypothesis to explain this color change was that they may be moving pigments around in skin cells. A study by the University of Geneva researchers describes that chameleons change colors by rearranging an ordered array of nanocrystals in the top chromatophore (also known […]

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  • A Day in the Life of an Elite Male Greater Sage-Grouse on the Lek – Marc Dantzker – Cornell Lab of Ornithology (2015)

    A Day in the Life of an Elite Male Greater Sage-Grouse on the Lek – Marc Dantzker – Cornell Lab of Ornithology (2015)

    Here’s another fascinating piece of natural history from the Cornell Lab of Ornithology. In this series of short observations staff producer and biologist Marc Dantzker breaks down the mating behavior and social interaction of the Greater Sage-Grouse (Centrocercus urophasianus) in five sections. Lekking or lek mating is a breeding behavior where males come together in a place and perform competitive displays to impress visiting females. While males do their “hello check me out” dances, females asses their qualities and choose […]

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  • Popped Secret: The Mysterious Origin of Corn – Nathan Dappen & Neil Losin – HHMI (2015)

    Popped Secret: The Mysterious Origin of Corn – Nathan Dappen & Neil Losin – HHMI (2015)

    Domestication of plants and animals is a key transformation in recent Human evolutionary history leading to sedentary farming societies. Domestication of Maize particularly followed a different trajectory from the agricultural crops of the old world. This HHMI documentary tells how the ancestral wild grass called Teosinte was domesticated to evolve into Maize. In the old world, most domesticated grasses had a surprisingly similar “first step” that paved the way towards agriculture. In old world grasses including rice, wheat, barley and […]

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  • Bald Eagle Cam – Live from Minnesota – Breeding Season 2015

    Bald Eagle Cam – Live from Minnesota – Breeding Season 2015

    Stream videos at Ustream The 2015 breeding season for a pair of iconic Bald Eagles in Minnesota has begun. After pair bonding and nest repair (nestoration) eagles started incubating eggs again! If you are having a severe eagle nest watching withdrawal help is on the way: Another pair in Florida already started pair bonding and may lay eggs around Xmas! A pair of iconic Bald Eagles have been raising their chicks in Central Minnesota on a nest constructed at 75 […]

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  • Decorah Eagle Cam – Nesting Season 2015

    Decorah Eagle Cam – Nesting Season 2015

    Live feed has begun from the new nest named N2 for Decorah bald eagles. The pair known as “Mom” and “Dad” are visiting and maintaining the nest occasionally. Established by the Raptor Resource Project in 2007 this breeding pair of Bald Eagles in Decorah, Iowa has been under intense observation. The pair became famous after the PBS Nature Documentary “American Eagle” in 2008. At one point in 2012 the viewer numbers reached 250 million making the project the most heavily […]

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  • Crossection of a Dandelion Compound Flower – Rüdiger Hartmann (2015)

    Crossection of a Dandelion Compound Flower – Rüdiger Hartmann (2015)

    Dandelion (Taraxacum officinale) is one of the most ubiquitous plants belonging to the family Asteraceae. The plant is native to Eurasia but has become naturalized to all temperate regions of the World introduced unintentionally by Humans. It’s compound flowers are self-pollinated and seeds are wind dispersed. In this short observation developmental biologist Dr. Rüdiger Hartmann of the University of Freiburg has done a wonderful job of showing the dynamics of the mature compound flowers (inflorescence) using timelapse videography in his […]

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  • The Origin of Birds – Dan Lewitt – HHMI (2015)

    The Origin of Birds – Dan Lewitt – HHMI (2015)

    The Great Transitions is a three part documentary covering evolutionary origins of land vertebrates tetrapods, birds and Humans. In this second installment of the series, paleontologist Julia Clarke tells how birds evolved from dinosaurs. When the first Archaeopteryx fossil was discovered in a quarry in Germany in the early 1860s it created a lot of excitement. The discovery came only a few years after the publication of the Origin of Species by Charles Darwin. Since then dozens of Archeopteryx fossils […]

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  • Preserving Lonesome George – AMNH (2015)

    Preserving Lonesome George – AMNH (2015)

    Lonesome George was the last male individual of the Pinta Island tortoise. He sadly passed away in his corral at the Charles Darwin Research Station in Galápagos Islands on the morning of June 24 2012. He died from natural causes. Lonesome George became a worldwide icon of conservation. Efforts to breed him at the Galápagos National Park and Charles Darwin Research Station concluded with no success. Thus he became “a living dead” member of his species doomed for extinction. Lonesome […]

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  • Bella – Hummingbird Nest Cam – Live from La Verne, CA

    Bella – Hummingbird Nest Cam – Live from La Verne, CA

    IF YOU SEE a BLACK SCREEN please WAIT until SUNRISE in CALIFORNIA! Bella is sleeping Welcome to the busy and productive nest of the hummingbird called Bella from La Verne, southern California located on a branch of a fig tree. Bella has started her breeding season 2015! On Feb 12th 2015, Bella had a new companion. Though Bella was sitting on her 6 day old babies, she has been consistently “visited” by this other adult female for 2 full days. […]

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  • Voyage of Darwin’s Beagle – Episode 1: One Small Step For Man (2009)

    Voyage of Darwin’s Beagle – Episode 1: One Small Step For Man (2009)

    Beagle: In Darwin’s Wake is a commemoration of 150th anniversary of the publication of Darwin’s book “On The Origin of Species”. Almost 180 years after Charles Darwin’s journey circumnavigating the world, a crew of authors, artists, and scientists follow in his footsteps. Journalist and presenter Lex Runderkamp, biologists Dirk Draulans and Sarah Darwin (who is the great-great-granddaughter of Charles Darwin), the artist Anthony Smith and the writer Redmond O’Hanlon are accompanied by a number of invited guests whose backgrounds are […]

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  • Voyage of Darwin’s Beagle – Episode 2: Low Life on the Ladder of God (2009)

    Voyage of Darwin’s Beagle – Episode 2: Low Life on the Ladder of God (2009)

    When Darwin set foot in Rio de Janerio he witnessed the brutality of slavery. Brazil is a melting pot of genetic diversity. All fossil and genetic evidence points that Africa is the home continent where modern Humans originated about 200 thousand years ago. As Humans spread and colonized new continents genetic diversity eroded gradually proportional to the distance away from Africa. Loss of genetic diversity was because of joint effects of two well understood genetic phenomena known as population bottleneck […]

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  • Voyage of Darwin’s Beagle – Episode 3: The Last Frontier (2009)

    Voyage of Darwin’s Beagle – Episode 3: The Last Frontier (2009)

    Fish are cold blooded animals and this property make them very efficient in terms of biomass accumulation. For this reason ecological trophic levels in aquatic systems can be much higher than terrestrial systems. The documentary film The End of the Line by Charles Clover mentioned in this episode draws attention to the problem of overfishing. About 400 million years ago, the Falkland Islands were part of the supercontinent of Gondwana, located between southern Africa and what is now Queen Maud […]

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