Fig. 1
From: Ecological correlates of cranial evolution in the megaradiation of dipsadine snakes
Diversity of neotropical dipsadine snakes. A – Leptodeira septentrionalis, a semi-arboreal frog specialist; B – Dipsas catesbyi, an arboreal snail-eating specialist; C – Oxyrhopus melanogenys, a terrestrial snake that typically feeds on reptiles; D – Imantodes lentiferus, an arboreal frog-eater; E – Atractus elaps, a small semi-fossorial snake that feeds on annelids; F – Xenopholis scalaris, a cryptic amphibian specialist, pictured here in a defensive flattening posture. See Fig. 2 for the skull morphology of these same six groups. (Photographs by G. Pandelis)