Why do cats wiggle their hips before they attack?

Gather strength

When a cat wiggles its rear legs and spine compress and tighten, building up strength like a spring, allowing it to strike faster.

Find and test the ground strength

While twisting the buttocks, the sole of the back foot can also test the strength and friction of the ground, in case the attack is not strong enough or slippery, so that the hunting is more guaranteed.

Judge politics to go distance

Although the buttocks twist, but the head has been kept still, is the little cat in the moment before the attack, further focus and judge the attack distance, while locking prey, improve the success rate of hunting.