The Earth has lots of different environments that support animal and plant species. Changes in an environment can have a negative impact on certain species ability to survive. When that happens plant and animal species can become endangered or even extinct. Extinct species are plants and animals that no longer exist on Earth. Changes in an environment can be natural or caused by humans and can have an impact on wildlife in an environment
… extinct species are species that no longer exist on Earth.
… that non-native species can threaten native species.
… that some scientists believe that dinosaurs became extinct because a meteorite hit the Earth.
Learn more about some animals that are endangered or threatened species.
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