... temperature, variance in temperature, and sex to test the Charnov–Bull model using a physiological trait, immune system strength, in the snapping turtle ( Chelydra serpentina ). We found no evidence of sex-specific differences in bactericidal capacity of hatchling blood, and no evidence that mean temperature...

.... For comparison, we also studied hatchling snapping turtles ( Chelydra serpentina ), a less cold-hardy species that usually overwinters under water. Although Chrysemys picta and Chelydra serpentina differed in some physiological responses, both species lost dry mass, catabolized lipid and tended to gain body...

...Shyril O’Steen ABSTRACT Snapping turtles ( Chelydra serpentina ) demonstrate temperature-dependent sex determination (TSD): intermediate egg incubation temperatures (23–27 °C) produce males, while extreme temperatures produce females. Snapping turtles are also sexually dimorphic: adult males...

... 1993 © 1993 by Company of Biologists 1993 reptile bird chorioallantois vascular density gas exchange chicken Gallus gallus quail Coturnix coturnix turtle Chelydra serpentina A major determinant of the rate of diffusive exchange of gases in animals is the morphology...

...G. V. Lauder; T. Prendergast ABSTRACT The kinematics of feeding on two prey types is studied quantitatively in the common snapping turtle, Chelydra serpentina , to provide a description of prey capture mechanisms and to determine whether kinematic patterns can be altered in response to prey...