Different kinds of animals have app

Different kinds of animals have appeared and disappeared throughout Earth’s history. Some animals go extinct because the climate where they live changes. The climate may become wetter or drier. It may become warmer or cooler. If the animals cannot change, or adapt, to the new climate, they die.
Some animals go extinct because they cannot complete with other animals for food. Some animals go extinct because they are killed by enemies. New kinds of animals are always evolving. Evolving means that the animals are changing slowly from generation to generation. Small differences between parents, children, and grandchildren slowly add up over many, many generations. Eventually, a different kind of animal evolves.
Sometimes many of the animals on Earth go extinct at the same time. Scientists call this a mass extinction. Scientists think there have been at least five mass extinctions in Earth’s history. The last mass extinction happened about 65 million years ago. This mass extinction killed off the dinosaurs.

Kết quả (Anh) 2:

Different kinds of animals have appeared, and disappeared throughout Earth's history. Some animals go extinct vì They Live where climate changes. The wetter or drier climate trở sewing. Warmer or cooler trở It unfortunately. If the animals can not change, or adapt, to the new climate, chúng die.
Some animals go extinct Không vì chúng with other animals for food complete. Some animals go extinct vì chúng Killed by enemies. New kinds of animals are always Evolving. Evolving the animals are vì from generation to generation Slowly changing. Small Hiệu the between parents, children, and grandchildren Slowly add up over many, many generations. Eventually, a different kind of animal evolves.
Sometimes many of the animals on Earth at the same time go extinct. Scientists call this a mass extinction. Scientists think there được five mass extinctions at nhất in Earth's history. The last mass extinction about 65 million years ago happened. This mass extinction Killed off the dinosaurs.