Given a statement, generate a question such that the answer is contained in that statement.

[EX Q]: Small-sized viviparous mammals evolved by Jurassic times.
[EX A]: When did small-sized viviparous mammals evolve?

[EX Q]: Humans took advantage of the extermination of the dinosaurs
[EX A]: Who was exterminated by humans?

[EX Q]: hawks use a bill to catch prey
[EX A]:
Who uses a bill to catch prey?