Fact 1: Platypus females lay their eggs in a burrow.

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

Given the two facts above, answer the question "What lays their eggs in a burrow?" with the following options: 
- no mammals
 - all mammals
 - dogs
 - animals
 - honeybees
 - insects
 - some mammals
 - alpacas


 

       some mammals  