Question

Animals of colder regions and fishes of cold water have thicker layer of subcutaneous fat. Describe why?

Answer 1

Fat acts as subcutaneous insulation of body for thermoregulation

Fat present in the subcutaneous layer acts as an insulator to prevent the loss of heat from internal body environment during cold climates. It also helps in reserving food during the periods of food scarcity.

Answer 2

The subcutaneous fat or adipose tissue lies just below the skin surface or in between internal organs. Being poor conductor of heat it acts as a a good insulator. It reduces the heat loss from the body, i.e., regulates the body temperature.