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threatened speices 絶滅要注意種 endangered speices 絶滅危惧種

knowledgeable 【形】 博識な、精通している、理解力のある◆知識の多さに重点を置いた形容詞

Scientists knowledgeable about the benefits of plants are concerned that the loss of a species of plant means the loss of a unique gene pool that could possibly have substantial benefits to mankaind.

gush

Some economists argue that the imbalances in the world economy can be blamed, in part, on a glut of savings from developing countries gushing into American assets.

take a heavy toll 大きな打撃を与えた、多くの犠牲を出した、多くの人命を奪った

The earthquake took a heavy toll of lives.

drive the price of 〜 up to... 〜の価格を...まで押し上げる

The appetite for the dark-red meat of the bluefin drive the price of a single fish
up to US$80,000.