Fact 1: Monotremes are mammals that reproduce by laying eggs.

Fact 2: Like the platypus, an echidna is an egg laying mammal.

Given the two facts above, answer the question "A platypus is an example of " with the following options: 
- a reptile
 - animals
 - an amphibian
 - a monotreme
 - killing insects
 - insects
 - murmur
 - an arachnid


 

    a monotreme     