welcome to estancia, san alonso, the island home of rewilding argentina — a project aiming to re—introduceguys, this is... when you make eye contact with a beast this size, your heartjust goes... imitates heart thumping quickly. chuckles. she's isa, she's a brazilian panther, orjaguar. she's about six years old, yeah — she's quite young. and how will the wetlands benefit from introducing this beautiful animal? well, these animals were part of this ecosystem. they have been here for hundreds and thousands of years. they disappeared from the wetlands and now, this ecosystem is lacking from this top predator. and under the supervision of magali, the co—ordinator, i'm allowed into the enclosure to prepare isa's meal. 0k, we've got one hanging fish, we've got one piece of mystery meat. ready to go? 0k. she looks a little bit — a little annoyed. normally, i don't think food arrives this late. blows whistle. wow! 0k, look, here she comes. entering into the feeding enclosure. we've hung the fish up, let's see if she can find it. 0h... 0h! that's a predator, ladies and gentlemen. wow! and breakfast