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The permafrost

The boundary of the permanently frozen region is retracting due to global warming.

Heartbeat

It is easy to demonstrate how the heart works.

Predators of the cold zones and climates

This video presents the diet and hunting behaviour of wolverines, Siberian tigers and snow leopards.

The Wallace line

The Wallace line divides the fauna of Asia and Australia.

Africa – The Climatic Anatomy of a Continent

An introduction of the climatic and altitudinal zones of the African continent.

Indigenous peoples in Africa hunters and gatherers

Our film, filmed in southern Africa, introduces the representatives of a disappearing lifestyle.

Animal migration

Some animals cover huge distances on a seasonal basis in order to survive.

The Equatorial Climate

Introducing the characteristics of the tropical rainforest climate

The Formation of the Atacama

The Atacama Desert is the highest-elevation and dryest desert on Earth.

From the Sahara to Amazonia

Sahara sand carries nutrients essential for the Amazonian flora.

The pupillary light reflex

In strong light the pupil contracts, while in low light it dilates.

Homemade firefighting foam

We can produce carbon dioxide gas using sodium hydrogen carbonate and acetic acid. The carbon dioxide puts out the flame.

The jaguar

The jaguar, which catches its prey with one leap, is one of the most dangerous predators in South America.

The patellar reflex

When the patellar tendon is lightly tapped, the extensor muscle stretches slightly.

Colour vision test

Red-green colour deficiency is a genetic condition.

Amoeba in motion

From a microscopic close-up you can inspect the movement of an amoeba with the use of its pseudopods.

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