However, the subject might also be a chimpanzee learning to use symbols to communicate, a white rat navigating a maze, or a sea slug responding to a danger signal.(然而，其主題也可以是學習使用符號進行交流的黑腥腥、在迷宮中航行的白鼠或是一只對危險信號做出反應的海參。)

There are over 3,000 known species of these colorful sea slug relatives and new ones are discovered nearly every day.(已知的彩色海參類動物超過了3000多種，而且幾乎每一天就可以發現一些新品種。)

Hence, an isolated piece of tissue removed from an organism-for example, the eye of a sea slug-will maintain its own daily rhythm but will quickly adopt that of the whole organism when restored to it.(因此，一個被隔離的組織的一部分被從一個集體中移走—例如，海蛤蝓的眼睛—組織還會保持它自己的日常節奏但是當恢復到整個集體中時會采用機體的節奏。)

Once the sea slug has eaten enough algae, and gained enough plastids, it can live off just sunlight for up to nine months.(一旦海蛤蝓吃飽了海藻，儲備夠了葉綠體，它能僅僅靠陽光就能生活最多9個月。)

And so far, this green sea slug is the only known animal that can be truly considered solar-powered, although some animals do exhibit some plant-like behaviors.(到目前為止，這種綠色的海參是唯一一種真正被認為是太陽能驅動的動物，盡管有些動物確實表現出一些植物般的行為。)

They think that it could be a huge, unknown kind of sea slug.(他們認為“尼西”可能是一種龐大的、還不為人類所知的海蛞蝓。)

This is a solar-powered sea slug.(這是太陽能海蛞蝓。)

So a sea slug could shape its body into the one, two, three or more humps that different people say they have seen.(因此，像不同的人所說的那樣，海蛞蝓也應該能將它的身體形成一個、二個、三個或更多個的駝峰形隆肉形式。)

But one kind of lowly sea slug actually has the solar power abilities of a plant. Bizarre but true, the sea slug carries out photosynthesis.(但是，一種不起眼的海蛤蝓竟然擁有植物那樣利用太陽能的本領。)

I learned years later that it was in fact a type of Nudibranch, or sea slug.(幾年后，我才知道，事實上，它是一種裸鰓類動物，或者說它是一種海蛞蝓。)