* Bone Density: While cat bones are strong, they have a lower density than human bones. This makes them lighter, which helps with their agility and leaping abilities.
* Flexibility: Cat bones are also more flexible than human bones. This allows for a greater range of motion, contributing to their incredible acrobatics.
* Cartilage: Cats have a higher proportion of cartilage in their skeletons, which helps absorb shock and provides cushioning for their joints. This is crucial for their active lifestyle.
So, while not as hard as a human skeleton, a cat's skeleton is still strong and incredibly well-suited for their needs.