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Marsh harriers are birds of prey found almost worldwide.
This animation demonstrates the anatomy of birds through the example of mallards.
The animation demonstrates the most important types of feathers and their fine structure.
The Arctic tern is famous for its long migration route: it flies from the Arctic to the Antarctic and back again each year.
This animation demonstrates birds' bones and eggs through the example of the common blackbird.
The characteristic colours of the common kingfisher aid the bird in catching its prey.
Penguins are birds living in the Antarctic and adapted to cold temperature and swimming.
Groups of western jackdaws are frequently found in cities. Konrad Lorenz analysed the complex social behaviour of these animals.
The archaeopteryx shows characteristics of both birds and reptiles. It is probably the ancestor of birds.
The dentition of different species of mammals reflect their feeding habits.