VOA慢速英語(yǔ)聽(tīng)力訓(xùn)練素材：鯨鯊的生物學(xué)特征

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VOA慢速英語(yǔ)，作為國(guó)際英語(yǔ)學(xué)習(xí)者的重要資源，通過(guò)清晰緩慢的發(fā)音與簡(jiǎn)潔的詞匯，為初學(xué)者及中等水平學(xué)習(xí)者搭建了通往流利英語(yǔ)的橋梁。它不僅幫助提升聽(tīng)力理解能力，還豐富了詞匯量，增強(qiáng)了語(yǔ)感，是學(xué)習(xí)地道英語(yǔ)表達(dá)不可或缺的工具，對(duì)全球英語(yǔ)學(xué)習(xí)者的語(yǔ)言提升至關(guān)重要。讓我們一起進(jìn)入今天的VOA慢速英語(yǔ)聽(tīng)力訓(xùn)練：鯨鯊的生物學(xué)特征。

英文原文

New research has provided surprising details about the biology of Earth's largest fish, the whale shark. Scientists say that female whale sharks grow more slowly but reach a much larger size than males. Researchers recently said they had followed the growth of 54 whale sharks over 10 years. The creatures swam in the Ningaloo Reef off of Australia's west coast, where hundreds of the rare fish travel every year.

新研究揭示了地球上最大的魚類——鯨鯊的生物學(xué)特征的驚人細(xì)節(jié)。科學(xué)家表示，雌性鯨鯊生長(zhǎng)得更慢，但體型遠(yuǎn)大于雄性。研究人員最近表示，他們?cè)粉櫫?4只鯨鯊在10年間的生長(zhǎng)情況。這些生物在澳大利亞西海岸外的寧加洛珊瑚礁中游弋，每年都有數(shù)百只這種珍稀魚類遷徙至此。

Whale sharks of both sexes were found to have their fastest growth while young, about 20 to 30 cm per year. Males were found to grow faster than females and reached about 8 meters in length at about 30 years old. At that age, they reach sexual maturity, meaning the fish were able to produce young. Females grew larger than males, reaching about 14 meters at about age 50 when they reached sexual maturity.

研究發(fā)現(xiàn)，鯨鯊無(wú)論雌雄，在幼年時(shí)期生長(zhǎng)速度最快，每年可長(zhǎng)20至30厘米。雄性鯨鯊的生長(zhǎng)速度被發(fā)現(xiàn)快于雌性，在大約30歲時(shí)達(dá)到約8米長(zhǎng)。在這一年齡，它們達(dá)到性成熟，意味著能夠繁殖后代。雌性鯨鯊的體型比雄性更大，在大約50歲時(shí)達(dá)到性成熟，此時(shí)體長(zhǎng)約為14米。

Mark Meeken is a marine biologist at the Australian Institute of Marine Science. He led the research that was published in Frontiers in Marine Science. Meeken described whale sharks as remarkable. He noted that females give birth to many young, up to 300 at one time. For this reason, Meeken said, female sharks probably need to be very large.

馬克·米肯是澳大利亞海洋科學(xué)研究所的海洋生物學(xué)家。他領(lǐng)導(dǎo)了這項(xiàng)發(fā)表在《海洋科學(xué)前沿》上的研究。米肯稱鯨鯊為非凡的生物。他指出，雌性鯨鯊一次能產(chǎn)下許多幼崽，多達(dá)300只。因此，米肯表示，雌性鯨鯊可能需要長(zhǎng)得非常大。

Our study provides the first evidence that male and female whale sharks grow at different rates. Meeken said whale sharks are filter feeders, meaning they take food and nutrients from the water. They swim great distances to find enough to eat. The longest known whale shark ever recorded reached a length of about 18 meters. Whale sharks can live for 100 to 150 years.

我們的研究首次證明，雄性鯨鯊和雌性鯨鯊的生長(zhǎng)速度不同。米肯表示，鯨鯊是濾食性動(dòng)物，這意味著它們從水中獲取食物和營(yíng)養(yǎng)。它們會(huì)游很長(zhǎng)的距離來(lái)尋找足夠的食物。已知最長(zhǎng)的鯨鯊記錄達(dá)到了約18米長(zhǎng)。鯨鯊的壽命可達(dá)100至150年。

Meeken suggested the study's findings were important for saving whale sharks. He noted that if it takes 30 or more years for the creatures to reach sexual maturity, there are lots of threats, such as hunting and ship strikes, before they get a chance to breed. For that reason, Meeken described efforts to save the creatures as urgent.

米肯表示，這項(xiàng)研究的發(fā)現(xiàn)對(duì)于保護(hù)鯨鯊具有重要意義。他指出，如果這些生物需要30年或更長(zhǎng)時(shí)間才能達(dá)到性成熟，那么在它們有機(jī)會(huì)繁殖之前，會(huì)面臨許多威脅，如捕獵和船只撞擊。因此，米肯稱保護(hù)這些生物的工作迫在眉睫。

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