Question

Bats and whales are classified as Mammals. Why?

Answer 1

Hint: The common feature to identify mammals is that They are covered with hair or fur. They are warm-blooded which means their internal body temperature is maintained throughout. They are given birth and are fed with milk that is produced by mammary glands. They have larger and more complex brains than any other group of animals.

Complete answer:
We will first see why bats are mammals.
Bats are true mammals because they give birth to live young, produce milk to feed their young ones. They are warm-blooded because they can self-regulate their body temperature. Bats use their wings to fly and also to catch their prey, mostly flying insects. Bats are more closely related to small, tropical primates than to rodents irrespective of their size.

Now let’s study why whales are called mammals.
Whales are mammals: even though they are aquatic, it might look like a fish but hierarchically it is an aquatic mammal. They spend all their life in the sea but still are similar to us. Whales give birth and feed on milk to offspring whereas the fishes lay eggs. Even Whales are warm-blooded animals. It belongs to an order called Cetacea which also includes porpoises and dolphins. They have a streamlined body and have flukes at the tail.

Note: Bats began to appear in the fossil record 52.5 million years ago. They belong to the scientific order of Chiropteran, meaning “hand wing”. The skeleton of bats shows that the bones of the wing are the same bones found in a hand, with four fingers and a thumb.