 The species inside the forest don't move outside the forest, and so they have the time to develop into new species inside the forest over time. And across East Africa, across Northern Africa, and to a certain degree across other parts of Africa, you have these isolated pockets of forest that have been isolated for millennia, maybe 15, 20 million years. And in those, the species have had time to evolve into new species. And there's a lot of these that are there.