Text - tag questions

Man: You want to know about giraffes, don´t you?
Boy: Yes, are they very common in Kenya?
Man: Yes, there are thousands of giraffes in this park. Look over there.
Boy: Wow! Are they protected?
Man: Oh, yeah. Giraffes are protected here.
Boy: What do they eat when there´s no food in this area?
Man: They migrate to other areas in Tanzania.
Boy: You don´t mean they walk all the way down to Tanzania, do you?
Man: That´s right. Sometimes they walk more than a thousand miles.
Boy: That´s incredible!