catfish

Why should we care about catfish?

我们为什么要关注鲶鱼？

However, many fish, such as shark, catfish, swordfish, and sea trout, contain almost one-third fat, while salmon and orange roughy contain over 50%.

然而，许多鱼类，如鲨鱼，鲶鱼，旗鱼和海鳟，含有近三分之一脂肪，而鲑鱼和橘棘鲷（红鱼）则超过50％。

And plenty of other animals have a different array of receptors, Li says, from chickens that also lack the sweet gene to catfish that can detect amino acids in water at nanomolar concentrations.

李霞说，其他动物也有各种不同的受体，比如说鸡也缺少察觉甜味的基因，只要附近水中的氨基酸浓度达到纳摩尔级别，鲶鱼就能发觉。