Fig. 2. Images of a jump from left to right with the long axis of the body parallel to the camera, captured at 2000 images s^–1. Selected images at the times indicated are arranged vertically in two columns. The first movement of a hind leg occurred 1.5 ms (frame –1.5) before take-off (0 ms) and can be seen as a downwards and backwards movement of the femur (white arrow). The two hind tarsi were positioned separately beneath the body. At take-off they moved closer together and then once clear of the ground, the tibiae of the two hind legs crossed beneath the body.