A type of herbivorous dinosaur easily recognisable by its large frill and three horns which lived in the Cretaceous period.

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European crayfish

A type of large freshwater crayfish widespread in Europe.

The mallard

One of the most common types of Anatidae, the ancestor of the domestic duck.


Long-necked herbivorous dinosaur with a robust body.

Prehistoric armoured fishes

Extinct species of fish which had thick ´armour´ protecting the head.

Grass snake

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

Freshwater fishes

Many freshwater fishes are also popular as food.

Western jackdaw

Groups of western jackdaws are frequently found in cities. Konrad Lorenz analysed the...

Spider silk, spider web

While the density of spider silk is less than that of nylon filaments, its tensile...

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