Dragonfly & Damselfly – Moving Object Pathway Predictors

First published May 24, 2017 Dragonflies have been around longer than dinosaurs. Except for size, they’ve changed little through time. They’ve gone from a wingspan about the size of an adult shin (between knee and ankle), to palm-sized (stretching between a fully extended thumb and pinky). Evolutionary biologists believe that size reduction is connected with decreased oxygen levels in the …