Watch Free Nature Documentaries

Home » Video (Page 12)

The Diatomist – Matthew Killip (2014)

June 17, 2017 at 12:00 am / Natural history, Video

Klaus Kemp, is a self-taught master of the Victorian art of diatom arrangement. After his first exposure to the intricate patterns of algae by the German microscopist J.D. Möller (1844 – 1907) he was completely hooked. Diatoms are single celled algae. They are the most common form of phytoplanktons and form the base of the aquatic food chains. They represent the earliest plant lineage long before land plants evolved at about 700 million years ago. Their cell walls are made […]

Continue reading »
Seed Dispersal and Habitat Fragmentation | HHMI BioInteractive – Danny Schmidt (2017)

June 10, 2017 at 7:06 pm / Ecological Documentaries, Natural history, Video, Wildlife Documentaries

Forests are under intense pressure. In the tropical forests, between 50-90 % of the canopy trees depend on animals for seed dispersal. Even in temperate forests animals such as deer, moose, boar and even bears disperse seeds. Today due to hunting for bush meat many tropical forests are becoming depleted of their seed dispersers. Here in this HHMI documentary, the researchers Andres Link and Carolina Urbina Malo of Los Andes University in Colombia in Colombia track brown spider monkeys to […]

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

June 7, 2017 at 10:09 pm / Global Patterns, Video

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. […]

Continue reading »
The Cuckoo – Artur Homan (2013)

June 7, 2017 at 12:42 pm / Ecological Documentaries, Evolution, Natural history, Video, Wildlife Documentaries

In the James Bond movie Spectre there’s a reference to the cuckoo bird in two scenes. The evil villain Spectre leers: “I see you! Cuckoo!” when he detects Bond in the classic evil assembly room scene. In the other scene towards the end of the movie Spectre reveals why he considers Bond as a cuckoo. In order to understand the reference we must know the biology of the Common cuckoo bird (Cuculus canorus). The European common cuckoo is a well […]

Continue reading »
Cameras Reveal the Secret Lives of a Mountain Lion Family – Sharon Negri (2013)

May 29, 2017 at 10:01 pm / Ecological Documentaries, Natural history, Video, Wildlife Documentaries

Mountain lions were once thought to be solitary animals. They are feared and hunted by humans. New footage captured by motion-triggered cameras in secluded areas deep in the Wyoming Wind River range shows a mountain lion family and the animals’ previously unknown social bonds. In this short documentary produced by WildFutures, we also learn about how hard it can be to be a mountain lion. They face an increasing loss of habitat, harsh winters, trophy hunters and even predators. Like […]

Continue reading »
Some Animals Are More Equal than Others: Keystone Species and Trophic Cascades – HHMI (2016)

May 29, 2017 at 5:39 pm / Ecological Documentaries, Natural history, Video, Wildlife Documentaries

On a field trip with students to the Pacific Coast, ecologist Robert Paine discovered a thriving community of aquatic organisms at Mukkaw Bay, at the tip of the Olympic Peninsula. The tide pools were full of green anemones, purple sea urchins, pink seaweed, bright red Pacific blood starfish, as well as sponges, limpets, and chitons. At the low tide rocky surfaces exposed bands of small acorn barnacles, and large, stalked goose barnacles, beds of black California mussels, and some very […]

Continue reading »
A Wolf’s Place – Annie White (2013)

May 29, 2017 at 5:26 pm / Ecological Documentaries, Natural history, Video, Wildlife Documentaries

Ecological theory predicts that by keeping herbivore populations under check predators can indirectly enhance growth of vegetation and can even alter local climate. The influential ecologist Robert Paine has demonstrated this phenomenon of keystone species on predatory starfishes and sea otters maintaining species diversity in coastal rocky communities in Washington. Directed and produced by Annie White, “A Wolf’s Place” tells the story of wolf reintroduction to Yellowstone national park in 1995. Wolves became locally extinct in much of the United […]

Continue reading »
Otters vs. Climate Change – KQED/QUEST (2014)

May 29, 2017 at 4:35 pm / Ecological Documentaries, Natural history, Video

Presence and absence of keystone species in a biological community have significant effects. To cite a few examples: Tropical fig trees form abundant food resources for many animals in times of scarcity. Bluechub fish in Eastern North American rivers construct rock nests which form a critical spawning area for many other fish in the same habitat. Beaver activity slows down hydrology and enhances water retention capacity of the ecosystems. Increased water table invigorates vegetation. At the same time reduced sun […]

Continue reading »
The Man Who Planted Trees – CBS – (1987)

May 24, 2017 at 8:15 am / Ecological Documentaries, Human Nature, Video

Forests are under intense pressure. The story by the French author Jean Giono published in 1953 is one of the most poetic depiction of landscape restoration that has touched feelings of so many people. The story inspired many restoration projects around the world. When read it for the first time many thought it was real. In fact, there are genuine independent reforestation projects impressively achieved by determined individuals and NGOs such as Plant a Billion and People and Reforestation in […]

Continue reading »
Protecting Forests – Equator Initiative (2015)

May 23, 2017 at 8:52 pm / Ecological Documentaries, Human Nature, Video

Under the umbrella of the United Nations Development Programme (UNDP), the Equator Initiative supports the work of local and indigenous communities worldwide in creating sustainable development solutions. In 2015, the Equator Prize was awarded to 20 communities in recognition of their efforts. This short film highlights the work of five of the recipients of the Equator Initiative Prize protecting forests around the world. These include Wanang Conservation Area in Papua New Guinea, Prey Lang Community Network in Cambodia, Mtandao wa […]

Continue reading »
Forest Man – William D. McMaster (2013)

May 23, 2017 at 8:39 pm / Ecological Documentaries, Human Nature, Video

Since 1979, Jadav Payeng has been planting hundreds of trees on an Indian river island threatened by erosion. Payeng is truly the embodiment of the protagonist in the famous story “The Man Who Planted Trees” published in 1953 by the French author Jean Giono. The photographer Jitu Kalita guides us through Payeng’s home the Majuli Island. This is the largest river island in the world located on Brahmaputra River. Floods generated by monsoon season threatens the Majuli Island by rapid […]

Continue reading »
Leave It to Beavers – PBS (2014)

May 22, 2017 at 1:14 pm / Ecological Documentaries, Natural history, PBS Nature, Video, Wildlife Documentaries

There are two species of beavers in the temperate zones of the world. North American (Castor canadensis) and Eurasian (Castor fiber) beavers were almost exterminated to extinction. These rodents are the largest after the tropical capybara that lives in wetlands of the South American tropics. Now bouncing back from extinction beaver populations are recovering under protection. Beavers are being recognized as keystone species by ecologists and conservation biologists. As habitat constructors and brilliant hydro-engineers, beavers can recharge water tables and […]

Continue reading »
Genesis: Final Point – Fernando Gonzalez-I. Sitges (2000)

May 16, 2017 at 7:23 am / Ecological Documentaries, Evolution, Natural history, Video, Wildlife Documentaries

Galapagos archipelago occupies a special place in our quest to understand nature. It sits right on the junction of the Pacific ocean current where warm and cold water shifts. The nutrient levels reaching the islands by cold Humboldt current show a drastic decline when warm surface waters engulf the archipelago. The Galapagos lies at the southeast trade winds. When the current shifts the rainfall pattern changes drastically. The

Continue reading »
Bald-faced Hornet Worker Collecting Nest Material

May 9, 2017 at 3:21 pm / Natural history, NatureDocumentaries.org, Short Observations, Video

A female bald-faced hornet worker (Dolichovespula maculata) was stripping the surface of a wooden fence post to collect nest building material. While stripping with mandibles the cellulosic material gets rolled up under her thorax. She strips a piece as long as her body and then climbs up again to strip another. Two consequtive strips must have been the optimal load size to carry into the nest. Leaf-cutter ants of the neotropics also use their bodies as yard sticks. The motivation […]

Continue reading »
A Ghost In The Making: Searching for the Rusty-patched Bumble Bee – Neil Losen & Nate Dappen (2016)

April 22, 2017 at 2:43 pm / Ecological Documentaries, Natural history, Video, Wildlife Documentaries

Honeybees are fragile animals that have lost most of the traits that provide survival advantage in their wild counterparts. Public attention was particularly grappled when an experiment in the 1950s aiming to regain lost genes by hybridizing domesticated European honeybees with the wild African ones failed miserably. The experiment that started with good intentions lead to invasion of Africanized honeybees from Brazil to north all the way up to Texas. There’s clearly a disproportionately large emphasis on honeybees while neglecting […]

Continue reading »