Many herbivores, comparatively defenseless, facing imminent and brutal death, freeze in place, paralyzed by fear, depending on camouflage and immobility to render them invisible to the terrible intentions of nearby red-toothed and razor-clawed carnivores. Predatory, reptilian forms still particularly have that effect on human beings (hence our awed fascination, for example, with dinosaurs). But to have no more courage than a rabbit is definitely not to be everything you could be.
