Yes, it must be very hard on Earth having so many people taken at once. Maybe they think it would be less likely to be noticed for some reason? Like- there are a lot more people than on other planets, so twenty-some people won't be missed as much? What's Earth's population like?

[She thinks for a second.]

...And if they're aliens, would they even have that kind of anatomy? The kind to be- um. Bags.