Fig. 9From: Developmental constraint through negative pleiotropy in the zygomatic archMammal zygomatic contributions. a snapshot of mammalian variation in the relative contributions of zygomatic arch bones, including a feral domestic cat (Felis silvestris catus), b a wild caught common rat (Rattus norvegicus), and c a European mole (Talpa europae). Outlines based on images found on DigiMorph (digimorph.org). Colored lines representing the relative length of the zygomatic process of the maxilla (red), the zygomatic bone (blue), and the zygomatic process of the squamous temporal (green) match the colors noted in Figs. 2 and 8Back to article page