這不是一條冰冷熱帶魚
This is no cold fish!
這不是一條冰冷熱帶魚！
This opah is about as close to a full-body warm-blooded fish as science has yet discovered. Here, biologist Nick Wegner prepares to insert a temperture sensor into the animal’s pectoral muscles. The device will record internal and external temperatures following the fish’s release.
這條月魚就像還未被科學家探索到的全身恆溫魚類。這裏生物學家Nick Wegner準備在這條魚的胸肌處植入一個溫度傳感器，這一裝置將在這條魚散發熱量的時候記錄下身體內外的溫度。
Fish as a rule stay the temperature of the water around them. Not the opah. As it hunts in the ocean’s dark depths, this fish keeps much of its body distinctly warmer than the frigid water around it. That makes this species the closest of any fish to the warm-bloodedness typical of birds and mammals.
一般來說，魚類體溫均會與其周圍水溫保持同等溫度，而月魚是個例外。當它遊向深海中捕食時，它的體溫將比周圍冰冷的水溫高一些。這一情況使得這一種類的魚比起其他魚類最接近恆溫動物特徵，如鳥類和哺乳類。
The opah (Lampris guttatus) is about the size of a car tire and almost as round. That shape helps explain why the opah is sometimes called a moonfish. This animal swims by using its large pectoral muscles to move its skinny, red pectoral fins. Those muscles also produce a lot of heat.
月魚大小約摸一個小汽車輪胎大，幾乎是圓的,這便是月魚另一個名稱----翻車魚的來源。月魚在遊的時候通過其胸肌的力量來帶動胸鰭，這些肌肉也會幫助月魚產生熱量。
