Gibbons are apes native to southern Asia.

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 permafrost

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

The Foucault pendulum

The Foucault pendulum is a device used to demonstrate the rotation of the Earth.

Studying adsorption

Purifying a solution coloured with fuchsine dye with finely ground activated carbon granules and a filter.


This species of antelope, native to southern Asia, is more often seen in zoos than in the wild.

Sound localisation

Sound localisation is an important element in orientation. A sound reaches the ear closest to it first.

Stenotopic species

Certain species can only be found in one or two regions on Earth, as they would be unable to tolerate any drastic environmental changes. These are called...

Dehydration of sugar with sulphuric acid

In this experiment we make beet sugar, that is saccharose, react with sulphuric acid.

Test tutorial 8.

Let’s find out how to use the Test Editor tool.

Test tutorial 6.

Let’s find out how to use the Test Editor tool.

Eurytopic species

Certain species spread out over a large area, almost throughout the globe. They are unaffected by changes in the environment; they are called eurytopic species.

Indigenous peoples in Africa hunters and gatherers

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

Africa – The Climatic Anatomy of a Continent

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

The barbary sheep

This video explains why the Barbary sheep on the savannahs bear such a strong resemblance to goats.


A backwater is a part of a river in which there is little or no current. Backwaters also provide opportunities for leisure activities such as canoeing and...

The Eurasian eagle owl

For centuries, the Eurasian eagle owl has been the symbol of wisdom and knowledge.

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