Question

Which of the following is an egg-laying mammal?

• A. Duck-billed platypus
• B. Kangaroo
• C. Whale
• D. Pigeon

Answer 1

The correct option is A

Duck-billed platypus

The correct option is A:

Explanation of the correct option:

Option A:

1. The duck-billed platypus, often referred to as platypus, is an Oviparous mammal found in eastern Australia.
2. It gives birth by laying eggs.
3. Usually, one or two eggs are produced by the mother, which are hatched in about 9-10 days.

Explanation of the incorrect option:

Option B:

Kangaroo is a terrestrial viviparous mammal that gives birth to an underdeveloped newborn, which is jellybean in size.

Option C:

1. Whales are marine viviparous mammals, the development of the offspring happens inside the body and not by producing eggs.
2. The female carries a single offspring every 1-6 years.

Option D:

1. Though pigeons give birth by laying eggs.
2. They are included in the category of Avian and not mammals.

Final answer: The Duck-billed platypus is an egg-laying mammal.