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

Fact 2: When the eggs hatch, the hen leaves the nest site.

Given the two facts above, answer the question "what females nest in a burrow and wait for the hatching?" with the following options: 
- ostrich
 - burrowing rabbits
 - loose soil
 - insects
 - warm-blooded
 - honeybees
 - rooster
 - platypus


 

        platypus 