But it soon became clear that these big animals were only part of the story. Perhaps even more important might be the little ones hidden underfoot. It's understanding these creatures that is attracting some of the best minds in the scientific world. You were going to show me something? -Yep, something new. Professor Ed Wilson is a world expert on biodiversity and at a mere 83, he's still pursuing his passion - ants. You see there's a big nest... Let me just get one specimen. If you look down at your feet, you may see them. Walking by here and there, an ant, a little beetle... They're what I like to call the little things that run the Earth. It's the rich diversity of insect life here that gives Gorongosa the prospect of a future.