What are some species of egg-laying mammals?

1 Answer
May 24, 2018

duck-billed platypus
Echidnas (spiny anteaters)

Explanation:

Both native to Australia and New Guinea.

duck-billed platypus is barely a mammal, it is semi-warm blooded and it does have milk but no nipples for the young; it secretes milk from glands on its belly and the babies lick it off the fur.