long middle finger resembling a twig that it could use for probing for grubs. There is a telling example of convergent evolution when an unrelated species (the Long-Fingered Possum from Papua New Guinea) devised a similar strategy to address the same problem. (Douglas was very intrigued by the implications of convergence. What need is there to posit a designer if the operation of random forces, constrained by the reality of the world, produces the same elegant solution, as if there were no choice in the matter?) We monkeys have