英語聽力文摘 狗比貓更懦弱？
Is Your Dog Wimpier than Your Cat?
Have you ever noticed that while it’s pretty easy to tell your dog is sick, it’s much harder to know how your cat or bird are feeling? Well, before you start asking your dog why it can’t be more stoic like animals half its size, it’s probably worth considering each animal’s place in the food chain.
You see, the lower down the food chain you are, the more important it is for you to hide any sign of illness. Obvious illness or pain function as red flags for predators. You may as well wear a sign saying, “Easy meal, guys. Come and get me.”
Now, even small dogs are genetically programmed to function like predators, which makes sense considering they are close relatives of wolves. And birds–you can probably figure out why the only way you’d find out your bird is sick is when it dies. The situation with cats, as compared to dogs and birds, is much more interesting. On the one hand, cats are predators, but on the other, they’re small enough to be prey.
So how can you tell if your smaller pets need medical attention? For one thing, trust your hunches. No one knows your pets like you do, so if you notice even very subtle changes in habits and behavior, you may want to have a vet look them over. For a cat, other signs of illness might be that it has stopped grooming, is losing weight, vocalizing more or less than usual, or missing the litter box.
你有沒有注意到發(fā)現(xiàn)狗是否生病很容易，但想知道貓或鳥的感受就比較難了。在你問“為什么狗不能比身材不及它一半的動(dòng)物更堅(jiān)強(qiáng)”之前，應(yīng)該思考一下狗在食物鏈中的位置。
要知道，在食物鏈的位置越低，隱藏疾病的任何征兆就越重要。明顯的疾病或疼痛對(duì)食肉動(dòng)物來說是危險(xiǎn)的信號(hào)。就好像你身上有這樣的標(biāo)語“容易到手的午餐，伙計(jì)們，快來吃我吧”。
現(xiàn)在，即使是很小的狗也由基因決定了是肉食動(dòng)物。所以把狗看作狼的近親也是有道理的。至于鳥類，也許能知道它是否生病的唯一途徑就是死亡。而貓的情況與狗和鳥相比，就更有趣了。一方面，貓是食肉動(dòng)物;另一方面，它們身材矮小很容易被捕食。
所以你要怎樣判斷寵物需要醫(yī)藥治療呢?首先，相信預(yù)感。沒有人比你更了解你的寵物。當(dāng)你注意到它們生活習(xí)慣上盡管是非常微小的變化，也要請(qǐng)獸醫(yī)對(duì)其進(jìn)行檢查。而貓生病的其它征兆，可能就是精神不振，食欲不佳等癥狀。
