USCIS - the same organ that asks women "have you ever been a prostitute" on citizenship tests?
"Though if we're being super pedantic, there's only one human species on this planet -- species of course being defined as animals who can mate and produce viable offspring."
You got me here ;)
I'm pretty sure the prostitution questions apply to men, too. The question is "Have you EVER engaged in prostitution or are you coming to the United States to engage in prostitution?" (Part 8, Question 35). Credit where due, I suppose, an (albeit small) win for gender equality.
As an aside, you should see what else they ask. That's among the least concerning question -- they ask everyone if they've committed war crimes or trafficked humans recently, or been a member of a communist or nazi party. Or committed any political assassinations (Part 8, Question 48.a).
So to address the second half of your post, I have indeed heard of "other countries" (just ask USCIS) although being a US resident at the moment I want to speak to what I know, not for anyone else.
Though if we're being super pedantic, there's only one human species on this planet -- species of course being defined as animals who can mate and produce viable offspring.