Growling is an important form of communication for big cats, from territorial claims to mate hunting to demonstrations before a fight. On the African savanna, if the male lion, which has a pride of lions, roars more often, why can't the cheetah roar?
Exploring why cheetah can't roar, actually is a very typical significance thing, because although the cheetah viewed from the outside, with small and medium sized cats are not the same, but if from the perspective of anatomy and physiological structure, the source position of cheetah, with general small cats are the same, the structure of such that they can send purr, but not a roar, so find out the cause of the cheetah can roar, is to figure out why the cause of most cats do not roar.
Cheetah and most cats can't roar, is actually a very simple reason, that's because the tigers, lions and other big cats of the structure of the source position and is not the same, such as cheetahs, leopards belong to the inside of the four kinds of roaring animals, their tongue bone is not fully hardened, and accompanied by a ligament, when air through the ligaments can stretch, have a greater voice channel, the more open when ligaments stretch, the sound of the deep, interact with other sound structure, can be a frightening roar.
Cheetahs can't roar because their hyoid bones are almost completely ossified, less malleable and less flexible. In addition, in terms of the vocal cords, to the roaring tiger, lion and other animals, and presents the square of the vocal cords and the flanking lamina propria vocal cords are fat, collagen and elastin fibers, the organization of hyaluronic acid to form, in another side, contains only fibrin and hyaluronic acid to form of organization, makes it sound more deep, voice at the same time can use less pressure in the lungs.
Most animals like cheetahs have triangular vocal cords that are less stretchy than square ones, so animals like cheetahs can't make roars.
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