“What if there are hundreds of lobsters, all trying to make a living and raise a family, in the same crowded patch of sand and refuse? Other creatures have this problem, too. When songbirds come north in the spring, for example, they engage in ferocious territorial disputes. The songs they sing, so peaceful and beautiful to human ears, are siren calls and cries of domination. A brilliantly musical bird is a small warrior proclaiming his sovereignty.”
