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  • Beavers are vegetarians.

    海狸是素食主義者。

  • They gnaw through bark to eat the sugary layer underneath.

    牠們會咬穿樹皮,去吃底下的糖分。

  • They've been gnawing through forests for 20 million years.

    牠們已經這麼做兩千萬年了。

  • Felling trees with your teeth takes great strength, skill, and patience.

    用牙齒砍伐樹需要很多力量、技術和耐心。

  • One technique is to slice halfway through and let the wind do the rest.

    其中一項方法,是從中間啃一半,讓風自然把樹吹倒。

  • The beavers' incisors are strengthened with iron, which makes them orange.

    海狸的門牙含有鐵質,導致它們是橘色的。

  • They grow continuously and even self-sharpen.

    它們會不斷增長,甚至會自動變利。

  • The pond makes it easier to move around the heavy logs they need to build their dams.

    在池塘裡,海貍更方便移動沈甸甸的木塊去牠們的築水壩。

  • Out of the water, it's a struggle.

    離開水後,一切就變困難了。

  • Stones help weigh down the base.

    石頭可以幫忙穩固基地。

  • The whole family works together, carefully interlocking the timber.

    整個海狸家庭同心協力,小心地把木塊堆疊。

  • They dredge mud from the pond bottom to seal the dam.

    他們撈取池塘底部的泥土,把水壩封住。

  • Each pond traps several inches of sediment every year so there's plenty of it.

    池塘每年都會留有幾吋的沈積物,所以泥土是夠用的。

  • The young act as apprentice builders, learning the tricks of the trade.

    年幼的海貍便像建築師的學徒,學習著築水壩的秘訣。

  • The final results are impressive.

    最終結果相當驚人。

  • In the Rocky Mountains beaver dams slowly filter billions of tons of water.

    在洛磯山脈,海狸的水壩正慢慢過濾上億噸的水。

  • The ponds build up soil and nutrients and help prevent floods and droughts.

    泥土和養分在池塘裡緩緩累積,幫助預防洪水和乾旱。

  • (Leave it to Beavers, Wednesday, May, 8/7c on PBS)

    (交給海狸吧!五月的每週三,PBS 上的 8/7c )

Beavers are vegetarians.

海狸是素食主義者。

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