詼諧的語言，生動(dòng)的內(nèi)容一分鐘快速掌握科技最新動(dòng)態(tài)

>>本期節(jié)目音頻下載<<

Domestic Cats Roam Far and Wide
家貓其實(shí)也很"野"

Lions roaming the savannah are a staple of nature documentaries. But the millions of little lions that live in our homes and neighborhoods also lead fascinating lives. We know more about those lives now, because a two-year-long study used radio-transmitters to track cats at the southern edge of the cities of Champaign and Urbana in Illinois. It would have taken a dozen field researchers to collect the same data. The study is in the Journal of Wildlife Management. [Jeff Horn et al., "Home Range, Habitat Use, and Activity Patterns of Free-Roaming Domestic Cats"]
熱帶叢林里的獅子無疑是自然紀(jì)實(shí)的主要觀察對象，但左鄰右舍成千上萬的小貓咪也有豐富多彩的生活。研究人員耗時(shí)兩年，利用無 線電發(fā)射機(jī)追蹤伊利諾伊州的尚佩恩和厄本那南端的貓科動(dòng)物。如果不是無線電發(fā)射機(jī)，要獲取同樣的數(shù)據(jù)大概得耗費(fèi)眾多研究人員的時(shí)間和精力了。這項(xiàng)研究成果 刊登在《野生動(dòng)物管理》雜志上。

The entire kittie cohort included both housecats and feral cats, and ranged over almost 6,300 acres. One feral cat’s range topped out at 1,351 acres. New York’s Central Park covers 843 acres.
整個(gè)研究對象包括家貓和野外生存的貓科動(dòng)物，范圍覆蓋約6300英畝。一只野生貓科動(dòng)物的活動(dòng)范圍最大可達(dá)1351英畝，而紐約中央公園也只占地843英畝…（果然很野。。。）

Owned cats with homes roamed way less than their feral counterparts. But they still averaged a range of just under five acres. The pets were highly active just 3 percent of the time, compared with 14 percent for the cats that need to find their own food. The work should shed light on protecting species that the cats hunt, and inform the efforts to stop the spread of feline contagious diseases.
家貓的活動(dòng)范圍就小的多了，不過平均下來也有5英畝。家貓高度活躍的時(shí)間只有3％，而需要自行覓食的野生貓科動(dòng)物則有14％的時(shí)間是保持高度興奮狀態(tài)的。因此，人們也該意識(shí)到保護(hù)貓科動(dòng)物的獵食對象的重要性并采取行動(dòng)防止貓科動(dòng)物接觸性傳染病的傳播。

點(diǎn)擊進(jìn)入?yún)⑴c科學(xué)60秒查看背景資料和單詞總結(jié)>>>


聲明：音視頻均來自互聯(lián)網(wǎng)鏈接，僅供學(xué)習(xí)使用。本網(wǎng)站自身不存儲(chǔ)、控制、修改被鏈接的內(nèi)容。"滬江英語"高度重視知識(shí)產(chǎn)權(quán)保護(hù)。當(dāng)如發(fā)現(xiàn)本網(wǎng)站發(fā)布的信息包含有侵犯其著作權(quán)的鏈接內(nèi)容時(shí)，請聯(lián)系我們，我們將依法采取措施移除相關(guān)內(nèi)容或屏蔽相關(guān)鏈接。