Zoologists divide vertebrates into two types,cold blooded and warm blooded animals.The body of a cold blooded animal is the same temperature as the air or water around it.A cold blooded animal has to stay in the sun to get warm.It must find shade to cool off.Reptiles,amphibians,and fish are cold blooded.
The body of a warm blooded animal stays about the same temperature all the time.Warm blooded animals use food energy to stay warm.Some warm blooded animals can sweat to cool off.Birds and mammals are warm blooded.
You are warm blooded.The normal temperature of your body stays at about 98.6°Fahrenheit (37.0°Celsius).When it is hot outside,you feel hot.You might sweat or look for an air conditioned place.But your body temperature does not change.When it is cold outside,you feel cold.You might put on a coat or go indoors.But your body temperature does not change much.
Plant Eaters and Meat Eaters