Learn about food webs in this clip from Gorongosa Park: Rebirth of Paradise. Gorongosa's lack of top predators took a massive hit during the civil conflict. Snaring and the decimation of their favorite prey animals saw what was a lion stronghold to the brink of local extinction. But this didn't just effect the lions, many animals rely on these big predators to survive. Bob Poole comes across a flock of vultures. They've found a fresh Kudu carcass that seems to have died of natural causes, the problem is, without lions or hyenas to tear open the tough hide the vultures can't get to the meat. Interspecies dependencies like these demonstrate just how fragile these habitats are.