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視頻出處：
本影片片段出自《非洲》
They're over 60 centimetres long, already big enough to be
他們身長60多厘米 足以對森林里
a threat to the smaller inhabitants of the forest.
比他們小的居民構(gòu)成威脅
But they are themselves vulnerable.
但是他們自身也是很脆弱的
Particularly to other snakes.
尤其是對其它蛇來說
But this one is their mother.
但這是它母親
Unusually for snakes,
超乎尋常的
her maternal instincts continue for days after her eggs hatch.
蛇寶寶出殼后 她的母性本能仍持續(xù)了幾天
Even so, the forest is such a dangerous place
即便如此 森林是個危險遍布的地方
that only one in 100 of her youngsters is likely to reach adulthood.
蛇寶寶長大成年的概率只有1%
Just occasionally, the competition eases.
森林里偶爾也會有競爭緩和的時候
A tree suddenly produces fruit.
有棵樹突然結(jié)果了
It's a magnet for the creatures of the canopy,
那非常吸引在樹冠層上生存的生物
and they, in turn, as they feed,
他們在自己吃的同時
create a bonanza for those on the ground below.
也給地面生存的生物帶來了福利
