Turning turtle: Scaling relationships and self-righting ability in Chelydra serpentina

Jonathan Codd
Testudines are susceptible to inversion and self-right using their necks, limbs, or both, to generate enough mechanical force to flip over. We investigated how shell morphology, neck length, and self-righting biomechanics scale with body mass during ontogeny in Chelydra serpentina, which uses neck-powered self-righting. We found that younger turtles flipped over twice as fast as older individuals. A simple geometric model predicted the relationships of shell shape and self-righting time with body mass. Conversely, neck...
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