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As their mother returns,
它們的母親回來了
she sees what the larger chick has done.
她看到了大雛鳥的所作所為
The smaller chick seeks its mother's comfort.
小雛鳥來尋求母親的安慰
But she has already made her choice.
但是她已經(jīng)做出了決定
Only her first-born will get a drink.
只有第一個(gè)出世的寶寶能喝到水
Shoebills very rarely raise more than one chick.
鯨頭鸛一般一次只撫養(yǎng)一只雛鳥
The younger chick was only ever an insurance,
小點(diǎn)的雛鳥只是個(gè)備胎罷了
in case the elder didn't make it.
以防大的不幸夭折
Now it's old enough, the adults know that
現(xiàn)在雛鳥都大了 成鳥知道
they're better off putting all their efforts
最好還是把所有精力
into bringing up just one fit and healthy youngster.
都用在撫養(yǎng)一只健康的幼鳥身上為好
The swamp's changing water levels
沼澤水位飄忽不定
mean fishing is too unpredictable
捕魚全靠運(yùn)氣
for them to gamble on trying to raise two chicks.
所以一次撫養(yǎng)兩只雛鳥風(fēng)險(xiǎn)太大了
