Do they have gates there?

We are going to the zoo today!  It should be a beautiful day for the zoo, full of lots of laughs with our friends.  

Michael, though, is quite curious about the gate situation.  He has asked Josh and me numerous times about the gates.  He says, " Do they have gates there, Mom?  Are the gates big or small, Dad?"  At first Josh said that he thought that they took the gates away for the tigers.  Michael then asked, "Well, what about the alligators?  Will you lift me up on your head, Mom?"  I told him and tried to reassure him that we will be safe and so will the animals.  He gets the worrying honestly, I'm afraid.