In many mammels,testes remain outside body cavity in scortal sacs because

Why are testes present outside the body cavity?

Testes are located outside the body cavity.

In males testes are contained in the scrotal sacs because

(A) : Testes of mammals are present outside abdomnial cavity in scrotal sacs. (R) : Maturation of sperm needs low temperature

In most mammels, the testes are located in scortal sac for: