Some bugs have found the ultimate way to conquer the natural world: cooperation. Find yourself in the middle of the vast colonies of green ants; so vast, they rival human megacities. Your guide, David Attenborough, takes you inside the complex colony systems, where even the larvae play a vital role in building the nests. Discover the aphids miraculous cloning technique, allowing them to totally colonise their environments. Marvel as these tiny insects give birth to live clones, multiplying so fast they can completely monopolise the resources around them.