The links Connie posted had me going "pshaw, that's fake." But the one you posted shows it's believable and still absolutely amazing. Someone there posted the zoo's website. Wow.
I'm not sure the first one was edited - and I know the second one is from the show because if I try to post it here I get a message saying you can't do that because it's copyrighted.
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Wait, no, it doesn't. It says that it was put together, but not that the sounds were edited.
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