|Sunday, Apr 6, 2014 - 2:00 AM
"Wild Predator Invasion"
A growing number of scientists are documenting how the removal of top predators from the wild by humans has thrown ecosystems off-kilter, triggering domino effects that are only beginning to be understood. NOVA follows scientists who are trying a controversial solution - returning apex predators to their natural environments - and seeking to determine whether the reintroduced predators can both restore the natural balance and co-exist with humans. G