Reference Material:
We all know that there are some factors for species and animals to survive and reproduce, including environmental conditions, temperature, tolerance range, body size, weight, diets, seasonal and daily activity, behavior, and the altitude they live. Animals migrate to find a new habitat because the change of environment and only species that have the tolerance for the new environment could survive and reproduce. Human beings are the only organism that makes extensive use of technology to extend the limits of its natural tolerance range.
Sample Answer:
Animal survival and reproduction depend on many factors including the environmental conditions, temperature tolerance, body size, diet, seasonal and daily activity and behaviors. For instance, it is impossible for an animal to survive in the fridge, which indicates the importance of season and climate to animal survival. That is also the reason why some animals migrate to other habitats when the climate changes.
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