Under the water, there is an abundance of food... 水下有着丰富的食物

167. ..but he's here to eat.
     但它其实是来觅食的
168. The water here is more than ten degrees colder than the air.
     这里的水温比陆上低10多度
169. But that doesn't deter this intrepid hunter from taking the plunge.
     但这并不能阻止这位勇敢的猎手去冒险
170. Under the water, there is an abundance of food...
     水下有着丰富的食物
171. ..if he can catch it.
     前提是它能抓到
172. Snakes are cold-blooded,
     蛇是冷血动物
173. so he can't stay in these chilly waters for long.
     因此它不能在冷水里待太久

来自《行星地球 第三季 第一集 Planet Earth S03E01 海岸》第 170 行