The buenos aires zoo is gorgeous, as you can see, but also unlike any i've been to before. not that i consider myself a zoo connoisseur, but i've never been to a zoo where you're actively encouraged to feed the animals. they sell animal food by the bag or the bucket, for four pesos or eight, and it's a one-type-suits-all situation: you throw your little green pellets or your big shredded wheat to carnivores, herbivores, amphibians and mammals alike.
it leads to weird scenes like this one: fish hoping for a handout.
at the end of the day, though, zoos are about the kids you take to them, and i'm pretty sure jake, rona and sami had a good time.