Knowledge: There are many pretty amazing creatures in the zoo and some are allowed to touch while some wild animals, like manta rays, are very gentle but should not be touched all time to be safe.

Conversation:
Hi!  Do you know anything about manta rays?
I know they are found in warm temperature such as subtropical and tropical water!
They are pretty amazing creatures.  You can swim with them as they are quite docile. So can I touch them?

Response: No, even though they are very gentle it shold not be touched as they are wild animals.