The cat's ears are triangular as a whole. Cats' ears can not only hear sounds, but also usually express cats' emotional changes and mental states. For example, when a cat's mental state is highly concentrated or shows panic and fear, its ears will be tightened obliquely to the rear, showing the shape of "airplane ears". Cats' ears are very important organs for cats. Because cats' eyesight is not as good as that of humans, they often distinguish things and directions through hearing, so cats' hearing is very sensitive and their hearing range will be much wider than that of humans.
Another feature of cats' ears is the L-shaped ear canal, which can effectively prevent foreign bodies from falling into cats' middle ears and reduce the chances of cats suffering from ear canal diseases.
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