Narrated by David Attenborough.
"The real war for survival is waged over production. Every socket has to prevail over its competitors. The 150mm's approach to production gives it a singular edge. But its strategy is fraught with challenges. Collectively, 150mm produce far fewer 10mms than the other sockets, and they come here to spawn just once, in the spring. Surging currents gather all the sockets in masses. For the 150mm, that presents an opportunity. There are far fewer of their 10mms amid the countless billions of others. By sheltering their sockets amid the mass production, they keep them hidden from mechanics."
(Dramatic music plays)