or log in
Extinct species of fish which had thick ´armour´ protecting the head.
Blood vessels in fishes' gills absorb oxygen and release carbon dioxide.
Extinct proboscidea closely related to today's elephants, often hunted by prehistoric man.
Larvae of this type of mayflies spend the first three years of their lives in water,...
This owl species living in the furthest northern regions of our planet has adapted brilliantly...
Subterranean rodents widespread in Central- and Eastern Europe.
For centuries, the Eurasian eagle owl has been the symbol of wisdom and knowledge.
Based on their life cycle, insects can be grouped into three categories: ametabolous,...