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Figure 4


Fig. 4. The relationships between gape, cranial bone lengths and head length in banded watersnakes (Nerodia fasciata). The dotted lines indicate the slope predicted under a model of geometric similarity (length=1, area=2). Closed circles indicated individuals <500 mm snout–vent length (SVL) that almost exclusively consume fish, and open circles indicate individuals >500 mm SVL that almost exclusively consume frogs.





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