Write down four characters of mammals. Give two examples.
(i) Mammals are warm-blooded and the most evolved animals of the Animal kingdom.
(ii) Body is divisible into head, neck, trunk and tail. Moveable eyelids are present.
(iii) Females are have milk-producing mammary glands which secrete milk for the nourishment of the young.
(iv) Respiration is through lungs only.
Example: Human beings and Monkey.