Do Nifflers Lay Eggs?

According to one of Rowling's entries on Pottermore, nifflers are long-snouted fluffy animals. ... These animals are known to be some kind of relative to the platypus as it is one of the only mammals in the world which lay eggs. Their coats are made of spines and can look like a cross between a platypus and a hedgehog.

How do Nifflers reproduce?

Niffler mating is like that of other mammals. Nifflers will mate for life. If a mate dies, a Niffler will move on to a new mate, typically three to five months after the original mate's death. Nifflers have one baby a year, because their gestation cycle is 130-190 days long.

Are Nifflers extinct?

Nifflers are real! Hang on to your valuables.

And while they didn't appear in the movie, J.K. Rowling's Fantastic Beasts textbook lists the Diricawl, better known as the Dodo (a real-life bird that muggles believe to be extinct even though wizards realize they just have the magical ability to disappear).