每日听写12.5中级

She's ripping these things to shreds and keeping her claws in tip-top shape
它抓挠只是为了保持它的爪子锋利，
because this is exactly what her ancestors did in order to survive.
因为这正是它的祖先为了生存所做的事情。
As animals that were preyed upon, cats evolved to not get caught,
作为被捕食的猎物，猫进化出躲避追捕的技能，
and in the wild, the cats that were the best at avoiding predators thrived.
在野外，猫非常善于躲避捕食者。
So at your house today, Grizmo is an expert at squeezing into small spaces and seeking outand hiding in unconventional spots.
所以直到今天，Grizom仍然是个挤进小空间的专家，常常搜寻或躲藏在意想不到的地方。
It also explains why she prefers a clean and odor-free litter box.
这也解释了为什么它喜欢干净无味的小盒子。
That's less likely to give away her location to any predators that may be sniffing around nearby.
那是捕食者，即使在附近寻觅的猎食者，不可能发现的地方。
Considering everything we do know about cats,
想一下我们知道的关于猫的一切，
it seems that one of their most predominate behaviors is still one of the most mysterious.
然而它们最常见的行为之一仍然是最神秘的一个。
Cats may purr for any number of reasons, such as happiness, stress, and hunger.
猫打呼噜可能有多种原因引起，比如快乐、压力甚至饥饿。