See the link for more details on the movements.
https://evomedindia.com/2020/08/06/animal-movement-primal-play/
Leopard crawl- back flat, knees just off floor
Bear crawl- knees as straight as possible, head and chest way lower than hips.
Bunny Hop-torso upright, roll weight from back to front of feet as you move forward to preserve momentum and the elastic energy
Ape walk- more upright than the duck walk which has the upper body leaning forwards