There are many other ways other ways that animal ecology has changed. The goal of scientists is to find out what is happening and why it is happening that way. It is often very much a worry when animal species are dying or are unable to evolve naturally because of the drastic changes in their lifestyles and living areas. An endangered species is a group (population) of plants, animals or other organisms that is in danger of becoming extinct. This would happen because there are few of that animal left, its predators have grown in number, or the climate that it lives in is changing, or the places it lives in have been destroyed.
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