[Gay State Conservative]

...including a single parent hippo...

If the singleness is the result of widowhood (for example) that's fine.

...a mixed race dog couple...

No problem there.

...and kangaroos that have adopted polar bear cubs...

So is he fine with a human couple seeing their pet chimp as a child?

[JediJones]

...and kangaroos that have adopted polar bear cubs...

So is he fine with a human couple seeing their pet chimp as a child?

Maybe that was a reference to Tarzan, Lord of the Apes.