Cats have ears that hold their ears, and they have a layer of hair on their ears that can help them catch sounds.
Many cat owners find that cats have two layers of ears, as if a hole has been torn, so they are very worried about whether it will be related to disease or genetic defects. In fact, it is normal for cats to have two layers of ears. Each cat has two "ears". Small ears are also called ears, which can help cats accurately locate the source of close-range sounds.
The cat has a very developed hearing. If the owner sees the cat always shaking its ears, it means that it is mobilizing its ears to listen to sounds and using its ears to feel the surrounding environment. And when the cat leans its ears backward, it is to hear the sounds coming from behind.