They might eat less or move from one area to another area that is warmer. Other natural processes like rain and wind can cause environmental change by wearing the soil away. Rocks can be broken down by the pressure of roots or freezing water. In winter, water between rocks freezes and pushes the rocks out until they break. The changes we've talked about so far are changes made by nature.
Man can also make a lot of changes in the environment.
When people decide to cut down trees, grade off the land and build a road or a shopping center, the environment is changed forever. Animals and plants will have to adapt. If they can't they will die or leave the area. They could be very harmful for wildlife. Pretend that you just learned that your city is considering turning an area of your park into a shopping center.