Опубликовано в "Природа, Природа", язык - English. 5 страниц.
Since life emerged on Earth, its fauna has been transformed many times. For thousands of years and for various reasons, there have been 5 major extinctions of the species that have populated the Earth: they are known as the 5 mass extinctions. At present, and due to the action of human beings, the planet is on the edge of what scientists call the Sixth Great Extinction. Еще
