Which of the following belongs to mammal family?

Correct option is A

The correct answer is Whales.
Whale:
Whale belongs to the class Mammalia. The whale is a mammal, not a fish, hence it is warm-blooded. It is classified under the Phylum Chordata. Whales give birth to live offspring (whereas fish hatch their young from eggs), and feed their young (called calves) on milk produced by the female's own body.

Information Booster:

1. Whales are marine mammals and part of the order Cetacea.
2. They breathe through blowholes located on the top of their heads.
3. Whales nurse their young with milk, a defining characteristic of mammals.
4. They are warm-blooded, maintaining a constant body temperature.
5. Unlike fish, whales do not lay eggs but give birth to live young.

Additional Knowledge:

• (a) Whales: Whales are mammals because they exhibit mammalian traits such as live birth, air-breathing through lungs, and feeding their young with milk. They include species like blue whales and sperm whales and are adapted to aquatic life.

• (b) Frogs: Frogs are amphibians and belong to the class Amphibia. They are characterized by their ability to live both in water and on land. Frogs lay eggs and undergo metamorphosis, transforming from tadpoles to adult frogs.

• (c) Pigeons: Pigeons are birds and belong to the class Aves. They are warm-blooded and lay eggs, with adaptations for flight such as feathers and hollow bones.

• (d) Lizards: Lizards are reptiles belonging to the class Reptilia. They are cold-blooded and typically lay eggs, though some species give live birth. They breathe through lungs and have scaly skin.