猫咪咕噜噜的声音是说明什么？猫咪为什么会发出呼噜声

Why Do Cats Purr?猫咪为什么会发出呼噜声？

When a cat purrs（呼噜声）, you might think it is as simple as a human smiling or a dog wagging its tail joyfully, but it's more complicated than that.

当猫发出呼噜声时，你可能会认为这就像人类微笑或狗高兴地摇尾巴一样，就这么简单，但事实远不止如此。

Cats don't just purr when they're happy but also when they're distressed（痛苦） or afraid, according to pet nutritionists（宠物营养学家） Purina.

宠物营养学家普里纳说，猫不仅在开心的时候会发出呼噜声，它们在感到痛苦或害怕的时候也会发出呼噜声。

Evidence shows that purring is not only a method of communication,

有证据表明，呼噜声不仅是一种交流方式，

but a defence mechanism（机制） and way to keep calm in stressful or painful situations, such as when visiting the vet（兽医） or giving birth.

而且还是一种防御机制和一种在面临压力或痛苦的情况下保持冷静的方法，比如去看兽医或分娩时。

Because kittens are born blind and deaf, they need the vibrations（震动） from purring to communicate with their mother and littermates（同窝同伴）.

因为小猫生来既看不见也听不见，所以它们需要通过发出呼噜声来与母亲和同窝伙伴交流。

The low frequency of a cat's purr causes a series of vibrations inside their body that can ease breathing, heal injuries and build muscle, while acting as a form of pain relief.

猫咪低频率的呼噜声会引起身体内部的一系列振动，这些振动可以缓解呼吸、治愈伤痛、增强肌肉，同时也能缓解疼痛。

Not only does it help soothe the cat, but it is thought that there are health benefits for owners.

呼噜声不仅对猫有安抚作用，而且对猫主人的健康也有好处。

Cat owners are at 40 per cent lower risk of a heart attack and have lower blood pressure after interacting with cats and hearing their soft purrs.

养猫的人在与猫相处并听到它们轻柔的呼噜声后，患心脏病的风险降低了40%，血压也更低。

How do cats purr?

猫是如何发出呼噜声的呢？

Research has shown that cats' muscles move the vocal cords（声带） and, as they breathe in and out, air hits the vibrating（振动的） muscles, which creates the purring sound.

研究表明，猫的肌肉能移动声带，当它们吸气和呼气时，空气会撞击振动的肌肉，从而发出呼噜声。

You probably didn't know that cats that purr can't roar（咆哮）, and cats that roar can't purr, because of the small bone found inside the vocal cords, which in roaring cats, is a flexible（柔韧的） bone.

你可能不知道能发出呼噜声的猫不能发出咆哮声，而能发出咆哮声的猫不能发出呼噜声，这是因为能够发出咆哮声的猫的声带里有一根小骨头，这是一根很柔韧的骨头。

This allows big cats to make a deep, roaring sound but in domestic（家养的） cats is completely hardened and only allows air vibrations while exhaling（呼气） and inhaling（吸气）.

就是这根骨头使得大型猫科动物能够发出低沉的咆哮声，但是家养猫科动物声带中的骨头是坚硬的，只能在呼气和吸气时产生空气振动。

Researchers have also recently identified a new purr called the "solicitation（恳求） purr",

研究人员最近还发现了一种新的呼噜声，叫做“恳求呼噜声”，

which alters the normal purr into a more urgent "cry-like" sound, which is similar to that of a crying baby, so that we instinctively（本能的） want to help.

这使得正常的呼噜声变成了更急迫的“类似哭闹”的声音，就像是婴儿啼哭的声音，所以我们本能地想要帮助它们。