Recent Videos

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  Annotated Features of Moon Surface – Kaguya/JAXA

  July 23, 2019 at 11:32 am / Cosmological, Video

  Some astrobiologists consider that having a satellite as big as The Moon could be one of the prerequisites of life on a planet. Satellites with sufficient mass can exert a stabilizing effect on the rotation axis of its planet preventing erratic wobbles like a top loosing its speed. In fact, our Earth experiences such wobbles known as the Milankovich Cycles but thanks to our moon the effects are dampened. 2019 marked the 50th anniversary of the Apollo 11 Moon landing […]

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  A Shark Swallowed Whole by a Wreckfish | Okeanos Explorer/NOAA (2019)

  July 12, 2019 at 4:03 pm / Ecological Documentaries, Natural history, Short Observations

  The remotely operated vehicle Deep Discoverer (D2) and the telepresence capabilities of NOAA Ship Okeanos Explorer, brought a quite rare biological occurrence for Humans to observe. During the Dive 07 of the Windows to the Deep 2019 expedition viewers watching live have witnessed this fascinating predation in action taking place in the deep ocean. D2 was following a straight-line on a small topographic rise originally thought to be a shipwreck at about 450 meters (1,476 feet) of depth. As D2 […]

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  Wallace in Borneo – Bill Bailey’s Jungle Hero – BBC (2013)

  June 27, 2019 at 2:35 pm / BBC documentaries, Evolution, Natural history, Video

  The theory of evolution was co-discovered independently by two biologists that lived within the same time period. Darwin and Wallace were well known in their time but Wallace’s name gradually has been overshadowed by Darwin. Today we rarely (almost never) hear the name Alfred Russell Wallace. In the past there have been a few documentaries making a rare attempt to focus on the biography of this very influential biologist including an episode in Jacob Bronowski’s 1973 The Ascent of Man […]

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  An Interactive Exhibit – “The Legacy of a Lifetime of Collecting: The Carl & Marian Rettenmeyer Story”

  May 4, 2019 at 10:53 am / Natural history, Video

  The interactive exhibit “The Legacy of a Lifetime of Collecting: The Carl & Marian Rettenmeyer Story,” was inspired by a fascinating collection of army ants and their hundreds of closely associated organisms, or “guests.” The specimens collected over the course of 50 years of fieldwork in South and Central America by the late Carl and Marian Rettenmeyer. Filmed entirely on location at La Selva Biological Field Station in Costa Rica Rettenmeyers produced a two part documentary series on this ecologically […]

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  Climate Change – The Facts / David Attenborough – BBC (2019)

  April 23, 2019 at 8:46 pm / BBC documentaries, Global Patterns, Human Nature, Video

  This documentary has a very urgent message (so urgent that I don’t even have time to write up an accompanying text about it!). It is a call to arms. Climate change from global warming due to Human activities is now a well-established fact. Global atmospheric carbon dioxide level is now more than 410 ppm. In fact, you can check the most up to date atmospheric CO2 reading from Hawaii yourself. We have less than a decade to curb our emissions […]

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  A Diverse Tropical Forest Canopy and Crown Shyness – Dimitar Karanikolov (2019)

  April 22, 2019 at 7:21 am / Ecological Documentaries, Natural history, Video

  This is a wonderfully poetic and at the same time quite informative piece of short observation captured by the photographer Dimitar Karanikolov. The video successfully demonstrates a botanical phenomenon known as “crown shyness” by providing a nicely stabilized vertical view of canopy trees swaying by the wind in Tulum Mexico. Tree canopies are some of the most diverse sections in tropical forest. The exact mechanism of crown shyness is still not resolved but there are quite a few convincing hypotheses. […]

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  How Enzymes Work? – PDB/RCSB

  April 20, 2019 at 3:55 pm / Molecular Nature, Video

  Enzymes are a catalytic subgroup of proteins formed as end products of the Central Dogma of biology. They are essential for cellular functioning. Here in this Protein Data Bank (PDB) video the enzymes constituting the hugely important metabolic pathway –the citric acid cycle– that connects carbohydrate, fat and protein metabolism are briefly visualized. Subsequently, the enzyme aconitase (aconitate hydratase; EC 4.2.1.3) in this hugely important metabolic pathway is highlighted as an example. The steps taking place in the active site […]

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  What is a Protein? – Protein Data Bank/RCSB

  April 19, 2019 at 3:17 pm / Molecular Nature, Video

  Proteins are end products of the Central Dogma of biology. They are essential for cellular structure and function. Proteins have dizzyingly diverse structures. Since the invention of X-ray chrystallography by the Australian physicist William Lawrence Bragg structures of many complex molecules have been resolved including proteins. Solved structures of proteins are deposited in the Protein Data Bank (PDB), a free and curated structural data resource for thousands of biological molecules. These structures are stored in the form of Cartesian coordinates […]

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  The Red-Shanked Douc Langur – Ryan Deboodt (2019)

  April 11, 2019 at 8:54 pm / Evolution, Natural history, Wildlife Documentaries

  The douc langurs are among the most visually striking primates in the world. There three species of douc langurs: the red-shanked douc langur (Pygathrix nemaeus), black-shanked douc langur (Pygathix nigripes) and gray-shanked douc langur (Pygathix cinereus). All are endemic to Indochina. Here the filmmaker Ryan Deboodt has filmed the Red-Shanked Douc Langur of the Vietnam forests. Habitat loss, disease and trappers are threatening this species. Doucs are found in a variety of habitats: from lowland to mountainous terrain up to […]

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  Hurricane-induced Selection on the Morphology of an Island Lizard – Nature (2018)

  April 10, 2019 at 4:15 pm / Ecological Documentaries, Evolution, Video

  Hurricanes are catastrophically destructive and can have long-lasting effects on ecological systems. For instance, the Atlantic hurricane season of 2005 was a particularly strong one with record breaking 27 named storms. Mass mortality observed after hurricanes may be a force of natural selection. The hypothesis that destructive events such as hurricanes could drive natural selection has been controversial. In order to test this, scientists surveyed a common, small-bodied lizard (Anolis scriptus) that lives throughout the Turks and Caicos archipelago before […]

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  Ritualized Aggression in Humans – Haka / Ben Hall (2011)

  March 26, 2019 at 8:46 am / Human Nature, Video

  Ritualization of aggression is a beneficial strategy to tone down conflicts and avoid serious damaging consequences. Most of the time fighting is risky, wasteful and destructive. Ritualized aggression can resolve conflicts without resorting to actual violence. Besides humans ants, dogs and crayfish are known to engage in mock battles. Analytical tools used by evolutionary biologists have been very successful in explaining emergence of complex human and non-human behavior. Ritualized aggression is among them. The workers of the Malaysian giant forest […]

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  Bald Eagle Cam – Live from Minnesota – Breeding Season 2019

  March 17, 2019 at 11:32 pm / Natural history, Video, webcams

  The 2019 breeding season for a pair of iconic Bald Eagles in Minnesota is continuing. After pair bonding and nest repair (nestoration) eagles started incubating eggs again in! A pair of iconic Bald Eagles have been raising their chicks in Central Minnesota on a nest constructed at 75 feet altitude on a cottonwood tree. You can learn more about this nest from the FAQs page of the website hosting this nestcam. Last year on March 9th Mom got into labor […]

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  An Introduction to Zebrafish Brain

  March 16, 2019 at 6:18 pm / Evolution, Molecular Nature, Video

  What is consciousness? How do we learn complex coordinated movements like riding a bicycle and never forget afterwards? How does your brain know where your body ends and bicycle starts? The humble Zebrafish has all the clues to these questions and more. Systems simple enough to understand and complex enough to make generalizations always attracted scientists. The 80,000-neurons in the brain of the developing the zebrafish embryos provides one of those ideal systems to understand vertebrate brain evolution and function. […]

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  Nice Guys Finish First – Richard Dawkins (1987)

  March 16, 2019 at 1:54 pm / BBC documentaries, Evolution, Human Nature, Video

  In this BBC documentary Richard Dawkins explores the evolution of cooperation. The problem has been discussed intensely since Darwin’s time and is still being investigated scientifically. Cooperative species are quite successful but rare. Social insects (ants, wasps, bees and termites) make up only 3 percent of animal diversity yet they may constitute up to 50 percent of the total animal biomass in land habitats. Among 43,678 known species of spiders cooperative behavior evolved in only a few. How could a […]

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  A Virtual Tour of a Cell – XVIVO Scientific Animation (2018)

  March 9, 2019 at 8:12 pm / Molecular Nature, Technical Notes, Video

  The Cellscape is one of the many fascinating scientific visualizations created by XVIVO Scientific Animation Studio. The project was supported by Google Making and Science Team. The creators did a wonderful job in introducing us to the major parts of the cell visible to a viewer in the cytoplasm in a virtual environment. Conjuring the physico-chemical structures such as proteins and enzymes inside a cell is a rather difficult thing to do. The textbooks and diagrams, don’t do a justice […]

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