Why do cats like to hit the ground with legs? Cats like to land on both legs, perhaps because they feel safer, or because they like to control the movement of their legs, thus giving them more flexibility.
Cats do not have collarbones, but they have very flexible spines. Cats have 5 more vertebrae on their spine than humans, which allows them to nimble and move in mid-air.
Their super strong sense of balance and coordination abilities come from the vestibular system and its organs unique to vertebrates (balance organs in the inner ear canal except for the cochlea). The fluid-filled tubes in the ears (semicircular canals) allow both humans and cats to stay upright while walking, and can also identify where the specific direction of the ground is relative to the body.
When a cat falls from the air, the liquid in the semicircular canal of the ear will trigger the small villi tissue, which can help the cat determine the position of its body, which direction is upward and which direction is downward.
After studying how cats fall from the air, people have discovered that cats fall from below seven floors will be more severely injured than those who fall from higher heights.
In fact, a cat once survived after falling from the height of an 18-storey building. This explanation shows that after falling from a height of about 5 floors, the cat's descent speed will reach the terminal speed (i.e., the free fall speed). If it is longer than this landing time, the cat will have more time to adjust its posture, relax its muscles, stretch its limbs like a flying squirrel, and reduce its falling speed.
The cat starts from whereabouts until it is on all sides, and the whole process is like dancing ballet. First, the fallen cat turns its head and front of the body to make four legs fall under the torso, and then quickly move the back of the body to find the front. Once the cat lands, he will put his front legs closer to the face to absorb part of the impact, and then bend his hind legs to try to cushion and cope with bumps and shocks.
Although cats are so flexible, they don't always have their feet to land first. Some cats are injured when they fall from the kitchen operating table or from the balcony on the second floor. This is why I strongly call on all cat owners to ensure that their windows are solid and reliable, so as not to cause the cat to pop up and fall down due to its own weight when sitting by the window.
Also, don't let cats walk around the balcony without anyone taking care of it. For a sparrow, you can fly over the balcony with just a flap of your wings, but for a cat who likes to catch birds, he will jump up and climb over the balcony railing to catch up with the birds, jumping out desperately.