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As many pet owners will attest, when their cat prepares to pounce, it does a little butt wiggle first.
This butt-wiggling pounce lasts just a few moments as the feline crouches down low and wiggles its rear end before launching itself at its target … which is sometimes your feet under the blankets.
Baby - T - Rex - Ball - Fluff
Baby T. rex was an adorable ball of fluff!
"The short answer is science does not know; the butt-wiggling has not been studied, to my knowledge, in an experimental context," said John Hutchinson, a professor of evolutionary biomechanics at the Royal Veterinary College in London.
Hutchinson - Butt-wiggling - Hindlimbs - Ground - Cats
According to Hutchinson, butt-wiggling may help press the hindlimbs into the ground to give cats added friction (traction) for pushing them forward in the pounce. "It may also have a sensory role to prepare the vision, proprioception [an awareness of one's position and movement] and muscle — and whole cat — for the rapid neural commands needed for the pounce," Hutchinson noted.
Butt wiggling may also give the cat an aerobic warm-up, of sorts.
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