Part 1
Part 2/3. Life In The Undergrowth Ep. 4. The world of invertebrates exists in a web of relationships with plants and other animals. Unique footage of the world`s smallest insect (a fairy wasp only quarter of a millimetre long) shows it flying underwater to find the eggs of water beetles in which to lay its own brood. Some ants `farm` the trees that give them shelter, creating areas known as `Devil`s gardens`. To make sure these grow without competition, they kill off other seedlings in the surrounding vegetation.
