Question 1:
Why is it important that the scientists’ vacuum device can filter skin cells and hair from the air?
Response:
Those pieces hold DNA, which the scientists can use to identify the animals.
Question 2:
Why did Elizabeth Clare and her team use a group of naked mole rats that had been in one room for many generations in their study?
Response:
The DNA would have built up in the air during the time they had been there.