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Автор: Laura Perdew and Tom Casteel
Издательство: Nomad Press
Год: 2017
Формат: EPUB
Размер: 11 Мб
Язык: английский / English
Have you seen a dodo bird recently? Do you have mastodons playing in your back yard? Not likely?these species are both extinct, which means the entire population has died out. More than 99 percent of all species, or about 5 billion, have gone extinct since life first formed on Earth 4.5 billion years ago. Some of those species went extinct at the same time in an event know as a mass extinction.