The chickadee, for example, weighing just one-third of an ounce, seems a tiny spark of life to throw to the mercy of frigid, 40-m. p. h. winds.

例如美洲山雀，体重还不到三分之一盎司，像一个生命小火花，任凭时速40英里的凛冽寒风的吹打。

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Within hours the plankton run out, the feast winds down, and the mantas plow the bay's sandy bottom with their cephalic fins to throw hidden prey back into the water column.

在几个小时内浮游生物的盛宴即将结束，而蝠鲼犁其头鳍于海湾的沙底中，等待下一批猎物的到来。

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Within hours the plankton run out, the feast winds down, and the mantas plow the bay's sandy bottom with their cephalic fins to throw hidden prey back into the water column.

在几个小时内浮游生物的盛宴即将结束，而蝠鲼犁其头鳍于海湾的沙底中，等待下一批猎物的到来。

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