I always get a kick out of the " no other animal drinks milk" line.
no other animal drives cars, read books, uses electricity. you can go on forever with examples like that. friggin morons
Just about every mammal does drink it.
Not as an adult, which was stated above by the op. Sorry you couldn't connect that dot. But yeah you got me, I left one word off. I bet you grinned for an hour after catching that one and calling me on it.