Question

Which of the following lay eggs?

• A. Platypus and Echidna
• B. Humans
• C. None of the above

Answer 1

The correct option is A

Platypus and Echidna

The correct option is A.

Explanation for the correct option

1. Mammals are a class of tetrapod vertebrates that do not usually lay eggs but give birth to young ones.
2. Platypus and Echidnas are the only kind of mammals that lay eggs (oviparous).
3. Echidnas have short, stocked bodies with backs covered with sharp spines.
4. Platypus has a layer of air trapped next to their skin which is covered by brown fur.

Explanation for incorrect option:

Option B:

Humans are viviparous as they give birth to young ones instead of eggs.

Final answer: The platypus and Echidnas are egg-laying mammals.