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A two-foot-long tongue covered in microscopic hooks,
六十厘米長的舌頭上面布滿極小的鉤子，
followed by claws longer than those of a velociraptor.
加之比迅猛龍還要長的爪子。
A giant anteater on the plains of South America.
這是一只生活在南美平原上的大食蟻獸。
It can devour 20,000 insects a day.
它每天可以吞食兩萬只昆蟲。
Powerful forelegs enable it to rip apart a termite hill with ease.
有力的前肢讓它們能夠輕易地掰開白蟻巢。
And as the sun bakes the grass, the termites face new danger.
太陽炙烤草原，白蟻面臨著新的危險，
In minutes, fire turns grassland to ash.
幾分鐘內，大火就將草原化為灰燼。
But the grasses are not dead. Their underground stems are unharmed.
但是草不會被大火燒盡。它們的地下莖完好無損。
Weeks, months may pass,
數周、數月就這么過去了，
but eventually the rains will return and the grass will sprout again.
但是雨季終將來臨，青草又會重新發芽。
Some grasslands must endure not only fire, but ice.
一些草原不僅要忍受火的炙烤，還有冰霜。
As winter approaches, the prairies of North America begin to freeze.
冬季來臨，北美的草原開始霜凍。
