In some animals, what does the temperature of the environment affect?

Temperature affects the physiology of living things as well as the density and state of water. It exerts an important influence on living organisms because few can survive at temperatures below 0 °C (32 °F) due to metabolic constraints.

The environment affects animal behaviour by changing the availability of survival resources like food, water and food with air temperature having the primary effect, but altered by wind, precipitation, humidity, and radiation.