European badger

The European badger is an omnivorous, nocturnal animal. Badger colonies live in large...


Tardigrades can survive in extreme environments, they can even stay alive in outer space.


The dromedary is an indispensable animal for inhabitants of the deserts.

Dentition of mammals

The dentition of different species of mammals reflect their feeding habits.

Northern white-breasted hedgehog

The Northern white-breasted hedgehog rolls into a ball, using its spines to protect itself.


In ecology, a niche is a term describing the way of life of a species.


One of the most important monocot crops.

Common carp

Freshwater fish used as food in many parts of the world.


This animation demonstrates the anatomy of birds through the example of mallards.


ATP is the main source of energy for cells.


NAD⁺ is a coenzyme that plays an important role mainly in catabolic processes, while NADP...

Paramecium caudatum

Common ciliated eucaryotic unicellular organisms widespread in freshwaters.

Grass snake

A type of snake with a characteristic spot on its neck.

European mole

Moles are small subterranean mammals with modified, spade-like forelegs.

Cockchafer (Maybug)

The cockchafer (or maybug) is a widespread bug in Europe. Its larvae, known as chafer...

Large white butterfly

The large white butterfly is a common species of butterflies, through which we...

Planaria gonocephala

One of the most common types of flatworms.

Seeds and germination

Dicotyledons have two embryonic leaves (cotyledons), while monototyledons have only one.


A group of fish characterised by a cartilaginous skeleton, well-known species include the...


Long-necked herbivorous dinosaur with a robust body.

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