When Mohawk and Paddywhack were found dumped in a cardboard box, their rescuers figured the cats had lost movement in their back legs because of their cruel confinement.
They were rushed to an emergency clinic right after the box was found in a park in Toronto, Canada.
"It was assumed that at that point that maybe their deformities were actually injuries," Heather Brown, executive director of Toronto Cat Rescue, tells The Dodo.
X-rays told a different story. Mohawk and Paddywhack were born with a deformity that left their back legs paralyzed.
But Brown didn't need an X-ray to see these cats had long learned to live with their condition.