Following on from the creation of the birds of the air in panel 15, here we see the work of the fifth day (Gen 1:24-25). In a witty counterpoint to the scene of Adam given dominion over the beasts in the two panels below, the artist here has shown an ape sitting on a rock and gesturing as if naming his fellow beasts - a deliberate visual echo of Adam's actions in panel 08. This humorous detail fits into a long tradition in western art of showing monkeys 'aping' the actions of men.