The characteristic colours of the common kingfisher aid the bird in catching its prey.
Based on their life cycle, insects can be grouped into three categories: ametabolous, hemimetabolous or holometabolous insects.
Extinct species of fish which had thick ´armour´ protecting the head.
Living fossil, important stage in the evolution of tetrapods.
A prehistoric amphibian and an early representative of the Tetrapods, which became extinct 360 million years ago.
Large, extinct species of cats named after the shape of their large canine teeth.
One of the best known species of spiders, often kept as pets. Its bite is not fatal for humans.
A transitional form between fish and tetrapods, or four-limbed vertebrates.
Giant sequoias are the world's largest living organisms by mass.
Blood vessels in fishes' gills absorb oxygen and release carbon dioxide.
This plant that originates from China has become an invasive species.
Curious little animal living in underground burrows in the African savannahs.
The best known cartilaginous fish, sharks, do not chew their food; they use their razor-sharp teeth only for biting and tearing.
The closest relative of cattle that has become almost extinct. They used to live in the prairies, today they can only be found in several national parks.
The domestication of the wolf began more than 10000 years ago. After humans, it is the most widespread mammal.
During evolution numerous creatures learnt to adapt to their environment, for example by camouflage.
The largest of the great apes. During evolution humans diverged from gorillas around 6 million years ago.
A popular pet of children. They can be easily recognised by the patches behind their eyes.
The striped horse of the savannahs that pedestrian crossings were named after.
A plant originating from the Caucasus region, grown for its aromatic fruit.