Monsters of the Palaeozoic: sea scorpions

Eurypterids are an extinct group of Palaeozoic aquatic arthropods.

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Prehistoric armoured fishes

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

How do fish breathe?

Blood vessels in fishes' gills absorb oxygen and release carbon dioxide.

Woolly mammoth

Extinct proboscidea closely related to today's elephants, often hunted by prehistoric man.

Long-tailed mayfly

Larvae of this type of mayflies spend the first three years of their lives in water,...

The snowy owl

This owl species living in the furthest northern regions of our planet has adapted brilliantly...

European ground squirrel

Subterranean rodents widespread in Central- and Eastern Europe.

The Eurasian eagle owl

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

The reproduction and development of insects

Based on their life cycle, insects can be grouped into three categories: ametabolous,...

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