Topic: ecosystem

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The ferocious predatory dinosaurs of Cretaceous Sahara

In Cretaceous times (around 100 million years ago), North Africa was home to a huge river system and a bizarre menagerie of giant prehistoric predators -- including the Spinosaurus, a dinosaur even more fearsome than ...

How dead is the Great Barrier Reef?

Australia's Great Barrier Reef is the largest coral reef system in the world and the only living structure visible from space. Although ecosystem managers in Australia have worked hard to preserve the reefs, the past ...

Vampire Bats: Bloodthirsty … and Cuddly – Skunk Bear

In this Skunk Bear episode, Adam Cole travels to 'bat paradise' (also known as the country of Panama) to meet with May Dixon and Dr. Gerry Carter of the Smithsonian Tropical Research Institute. There he gets a close l...

‘Giant’ larvaceans filter the ocean with mucous webs

Using remotely operated vehicles (ROVs) and a new laser-and-camera system, researchers at the Monterey Bay Aquarium Research Institute (MBARI) have been able to study three Bathochordaeus species, transparent and rela...

Seagrass: Life in the Underwater Meadows

You dive down into a undersea meadow. Surrounded by blades of seagrass up to a meter tall, you begin to notice the abundant life all around. Schools of baby fish hide within the grassy maze as emerald sea slugs graze ...

How the food you eat affects your gut – TED Ed

The bacteria in our guts can break down food the body can’t digest, produce important nutrients, regulate the immune system, and protect against harmful germs. And while we can’t control all the factors that go into m...

Why 10 Daily Tons of Ant Poop Keep This Rainforest Thriving

High up in the rainforest canopy of Panama's Barro Colorado Island, there are ants everywhere. Azteca ants—one kind of 30 different ant species that might be in a given tree—stand out because of their epic, 9 foot (2....

Why the Giant Sequoia Needs Fire to Grow

Giant sequoias, the planet's largest trees and among the oldest living things on Earth—many of the largest are over 3,000 years old—depend on fire to help them reproduce. Learn how a destructive force is necessary for...

Humphead parrotfish poop helps create new island beaches

How can a hungry school of fish help to create a thriving reef island? In this clip from the BBC's The Blue Planet, neon-colored Humphead Parrotfish crunch rocks and hard corals alike as they forage for coralline alga...

Beauty and the Feast: When Herring Come to Spawn

Every spring, nature puts on a breathtaking display on the British Columbia coast. The waters turn milky white as millions of male herring release sperm, while the female fish lay billions of pinhead-sized eggs. Both ...

Hawaii – The Pace of Formation

The Kilauea Volcano's continued flow of lava into the ocean is one of the few places in the world to provide a front row seat of an island's formation. The Big Island is literally changing before your eyes. This vast ...

Biotop, an animation about declining tiger populations

Inspired by Tx2, a World Wildlife Fund action to double the wild tiger population by 2022, the next Chinese Year of the Tiger, design student Jola Bańkowska created this one minute animation about habitat loss: Biotop...

The World’s First Poo Museum

How might you preserve scat -- an animal's fecal dropping, poo, or poop -- for the world's first poo museum? ...or pooseum? In this BBC Earth Unplugged episode, Maddie Moate visits with Daniel Roberts, co-founder ...

Casse-croûte (Snacks)

From directing duo Burcu & Geoffrey, Burcu Sankur and Geoffrey Godet, enjoy these elegant and beautifully animated creatures as they look for a snack: Casse-croûte.

Science and survival on Continent 7: Antarctica

At -100 degrees F, you'll survive for less than 3 minutes and burn 5,000 calories a day, and boiling water can turn to snow instantly. And, at less than 1% humidity, your body will lose water just breathing. This is S...

Washed Ashore, giant animal sculptures made of found beach plastic

Creating epic animal sculptures made from plastics found on Oregon's beaches, Washed Ashore is a non-profit community art project that is aiming to increase awareness about plastic pollution in our oceans and the simp...

The Double-Crossing Ants to Whom Friendship Means Nothing

In the Tambopata National Reserve, located in the Peruvian Amazon, big-headed ants are 'hired' as bodyguards by young Inga trees who want to grow tall enough to reach the rainforest canopy. The rainforest is espec...

Why is Lake Hillier pink?

Fly over Lake Hillier, a stunning pink lake on Middle Island, off the south coast of Western Australia. The footage was filmed by Jaimen Hudson, who captures Australia's natural wonders by drone. Lake Hillier is a...

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