THE WORLD OF BIRDS in 8K ULTRA HD | BIRDS SPECIAL COLLECTION | WILD LIFE
Автор: Happy Dreams
Загружено: 2022-05-16
Просмотров: 89
Описание:
Birds, members of the class Aves, include more than 10,400 living species. Their feathers distinguish them from all other classes of animal; no other animals on earth have them. If you see an animal with feathers, it’s undoubtedly a bird.
Wings are a primary characteristic of birds, but they are found on other types of animals too. For example, bats are flying mammals with wings, and many types of insects have wings. Strong muscles in the chest help to propel wings, allowing for flight. Bird bodies are curved specifically to give lift to the wings. Different wing shapes provide different advantages, depending on species.
Today, there are more than 10,400 extant bird species in the world. Across North America and South America, there are more than 4,400 species of the Aves class. Approximately 2,700 different species are found in Asia, and another 2,300 or so are found in Africa. More than 500 species are found in Europe west of the Ural Mountains, and more than 700 species are found in Russia. Costa Rica has one of the highest concentrations of bird species – roughly 800.
#birds #theworldofbirds #birdslover
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