Willard discoursed about how certain snakes, including boids, coil around prey: “Constricting Methods of Snakes,” Daniel E. Willard, Copeia, 1977, vol. 1977(2), pp. 379-382. “Geometry limits to four the ways a snake can coil around its prey: venter toward the prey, dorsum toward the prey, left lateral side toward the prey and right lateral side […]