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Domestic yaks (Bos grunniens) are large, cold-tolerant ruminants living mainly in Central Asia's high mountains.
The steppe eagle is a large eagle species that inhabits steppes and mountains in Asia.
The young leaves of the evergreen tea plant are used to prepare a stimulant infusion.
Learn about the significance of regeneration in the animal kingdom by examining various examples.
It is an echinoderm living on the sea floor that plays an important role in the circulation of substances.
Sea stars are predatory echinoderms known for their exceptional regenerative abilities.
Noise surrounds us everywhere, but it can be harmful. Let's see how.
Learn more about the early stages of human development with this lesson.
The plumage and streamlined bodies of birds play a key role in flying.
Let's examine the anatomy of birds and their vital processes from the point of view of flying.
In this lesson you will familiarise yourselves with special organisms, that is lichens.
This lesson presents which animals developed feathers during the course of evolution.
This lesson presents the different types of forests and their layers.
The lesson introduces you to our innate and learnt reflexes.
This lesson presents the anatomy of the eye, the mechanism of vision, and common vision problems.
This lesson presents the structure and functioning of the human urinary system.
This lesson presents the vision and the evolution of eyes of animals.
Learn about the migration and reproduction of birds.
Learn about animal species that emerged in the distant past and stayed mostly unchanged
This lesson presents some types of cardiovascular diseases, including their diagnoses and treatment options.
A lesson about peach trees and fruits, with a dessert at the end.