North american dogtooth having solitary white flowers with yellow centers and blue - or pink-tinted .

北美的一种赤莲属植物，具有单生的以黄色为中心的白色花朵。

Perennial bulbous herbs most of northern united states : dogtooth violet ; adder 's tongue ; trout lily ; fawn lily .

主要产于美国北部的多年生草本植物，具球茎；犬齿赤莲；瓶儿小草属蕨类；赤莲属的一种植物；赤莲。

But despite their strong tuna-resemblance , dogtooth tuna are actually fierce bonitos .

尽管和鲔鱼极为神似，但它其实是凶猛的鲣鱼。

Unlike their tuna cousins , dogtooth are unable to keep their body temperatures warmer than the water around them so they keep to tropical regions .

不同於表亲鲔鱼的是，它们的体温低於周围水温，因此只能生活在热带地区。