Animal Life
Human Anatomy and Physiology
Deforestation and Habitat Loss

How does animal size affect metabolism?



User Avatar
Wiki User

The larger an animal the smaller the ratio of surface area to mass and therefore and lower the percent loss of heat from the body. This is due to the mathematical relation between surface area ( length2) to volume (length3). In mammals that thermo regulate (maintain thermal homeostasis) by modulating their metabolism, smaller animals must be more active per gram and consume more food per gram body weight.