[영문 레포트] 현대 척추동물의 진화에서 대량 멸종의 중요성

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"현대 척추동물의 진화에서 대량 멸종의 중요성"에 대한 영문 레포트입니다.

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Extinction and the birth of a new life are phenomena that have been steadily occurring under the name of evolution. Extinction is defined as the disappearance of a species itself due to the imbalance of the ecosystem, and there have been five mass extinctions since the advent of animals on Earth, from 400 to 60 million years ago. The largest mass extinctions occurred at 251 million years ago, at the end of the Permian period and this is the third mass extinction of Earth history – 83% of all genera on land and sea have vanished (it is 96% of all marine life and 70% of all land vertebrates).
Because of this massive alteration, the geologic time era is divided into Paleozoic and Mesozoic based on this period. Although the cause of mass
extinction has not been solved yet, there are various hypotheses (volcanic eruption, change of sea level, meteorite collision, etc.)

참고자료

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