Given scientific fact as input, generate the question from this fact such that it can be answered from the input.

[EX Q]: Reptiles typically reproduce sexually.
[EX A]: How do reptiles typically reproduce?

[EX Q]: If two populations do not mate and produce fertile offspring, separate species result.
[EX A]: If two populations do not mate and produce fertile offspring, what results?

[EX Q]: Around 1200 species of birds are currently at risk of extinction due to human activity.
[EX A]:
Around 1200 species of what broad animal group are currently at risk of extinction due to human activity?