after six hours, we made it to the budapest zoo.o ark already, and i hope to get number 5,000 here at the budapest zoo... ...the persian leopard. is that a boy or a girl leopard? this big cat was once common in iran, but today its numbers are estimated to be as low as around 1,000 in the wild. and she's just eaten a rabbit, i see the fur everywhere. okay, excellent. the next day, the morning's off to a good start. (banging) with only two more to 5,000. number 4,999 really wants his 15 minutes... (banging) sartore: oh, yeah... see, we don't want all this. sartore: ...or his food. (overlapping voices) see, we want all the food out of there, no food on the floor at all. ah! (sartore speaking over the banging) we feed one grape at a time. and we toss it, and he goes for that grape and turns around. this will take him an hour to eat, so we want to pull all the fruit. (speaking in hungarian) she says, it's about four minutes to eat all of them that is on the floor. rule number one about the photo ark: always trust the keeper. ♪ nice, very