- only about four of them in 40 square miles.
百平方公里内只有四只 - There is simply not enough prey to sustain more.
只是因为猎物数量不足以维系更多的生命 - They live solitary lives.
雪豹是独居动物 - Nonetheless, they are well aware of the presence
尽管如此 他们仍能很好地掌握 - and the movements of their neighbours,
邻居们的存在和动向 - because they leave messages in a few special places.
因为他们会在几个特殊地点给对方留下信息 - They rub particular rocks with their cheeks
像这样用脸颊摩擦特定的岩石