Fig. 7From: Jurassic Pork: What Could a Jewish Time Traveler Eat?Modern and fossil bird feet. A. Ceylon junglefowl (Gallus lafayetti) showing the rear facing “extra toe” or hallux (digit 1; arrow). Photography by REP, specimen on display at Field Museum. B. Anisodactyl foot of the Cretaceous stem-bird Confuciusornis. Photograph by TRH. Note the rear-facing hallux for perching (arrow)Back to article page