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These shallows around the equator are excellent nurseries.
赤道附近的淺海是個(gè)非常理想的托兒所。
They're warm, calm, and contain very few predators.
溫暖，平靜，很少有掠食者。
The playful calf is now drinking five hundred liters of milk a day, but his mother must starve.
頑皮的小座頭鯨每天要喝500公升奶，但是它的媽媽卻餓的要死。
There is nothing for her to eat here.
在這里母鯨沒有東西可以吃。
Like many tropical shallow seas, these crystal clear waters are virtually lifeless.
和多數(shù)熱帶淺海域一樣，這片明凈的水域?qū)嶋H上沒有什么生機(jī)。
They receive year round sunlight, but they lack the nutrients essential for the growth of plankton.
雖然充滿陽光，但是這里主要缺少浮游生物生長(zhǎng)所需的養(yǎng)分。
The mother will be trapped here for the next five months
母座頭鯨接下來要困在這里大約5個(gè)月，
until her calf is strong enough to make the journey to the feeding grounds, near the poles.
等到小鯨足夠強(qiáng)壯了，才開始到極地進(jìn)食點(diǎn)的旅行。
Coral reefs are oases in a watery desert.
珊瑚礁是荒涼海洋中的綠洲。
Most tropical shallows are barren,
多數(shù)熱帶淺海比較荒涼，
but these coral havens contain one quarter of all the marine life on our planet.
不過珊瑚礁匯聚著地球上四分之一的海洋生物。
