70 布什政府加紧拯救濒临灭绝动物行动 ENVIRONMENT REPORT- September 21, 2001: Endangered Species AgreementBy Cynthia Kirk (Start at 59

发表于:2018-12-09 / 阅读(56) / 评论(0) 分类 自然探索

With the weight of between three and five tons, the white rhinoceros checks in as the planet's second largest land mammal. AZUZ: And the sub species of the white rhino known as the northern white rhino is now just two animals away from complete extin

发表于:2018-12-20 / 阅读(51) / 评论(0) 分类 CNN美国有线新闻2018年5月

Rabbit Relatives Reel from Climate Change 气候变化又将害死谁 Up in Californias High Sierra, above the dense pine forests, rocky habitats reign. And if you look carefully among the boulders, you might see a pikaa rabbit relative the size of a

发表于:2018-12-24 / 阅读(62) / 评论(0) 分类 2017年Scientific American(九)月

Beneath the tourist gondolas on Lake Xochimilco in Mexico lives a creature that resembles a monster. Known as the water monster or Mexican walking fish, the axolotl is type of salamander. The Ambystoma Mexicano, this species, is the axolotl of Xochi

发表于:2018-12-30 / 阅读(163) / 评论(0) 分类 国家地理2008年

Animals at Risk: Who Cares? An animal species becomes extinct when it fails to produce enough young is each generation to keep pace with the death-rate. We can tell from fossil evidence in rocks that

发表于:2018-12-31 / 阅读(71) / 评论(0) 分类 有声英文阅读

AS IT IS 2016-05-02 Cambodia Royal Turtle Near Extinction 柬埔寨境内皇家龟濒临灭绝 The so-called royal turtles of Cambodia are close to disappearing forever. The group Wildlife Conservation Society says fewer than 10 Cambodian royal turtl

发表于:2019-01-12 / 阅读(56) / 评论(0) 分类 2016年VOA慢速英语(五)月

Test Tube Pups May Help Rescue Endangered Species 试管小狗的成功可拯救濒临灭绝动物 Scientists at Cornell University have proudly presented the first litter of dogs successfully born through in vitro fertilization, or IVF. The breakthr

发表于:2019-01-14 / 阅读(70) / 评论(0) 分类 VOA标准英语2015年(十二月)

不法交易造成穿山甲濒临灭绝 Have you ever heard of a pangolin? 你听说过穿山甲吗? A lot of people haven't. 相信很多人都不知道。 It's also known as a scaly anteater. 它也被称为穿山甲(scaly anteater)。 Conservation

发表于:2019-01-14 / 阅读(87) / 评论(0) 分类 VOA标准英语2015年(十二月)

Autumn in the Rocky Mountains, a time of change. Aspens turn golden and the bull elk, in the midst of their mating season, work hard to catch the eye and ears of the ladies. Up in the highest peaks, another call rings out. It's the pint-sized prince

发表于:2019-01-22 / 阅读(86) / 评论(0) 分类 自然百科2009年

Beneath the tourist gondolas on Lake Xochimilco in Mexico lives a creature that resembles a monster. Known as the water monster or Mexican walking fish, the axolotl is type of salamander. The Ambystoma Mexicano, this species, is the axolotl of Xochim

发表于:2019-01-22 / 阅读(81) / 评论(0) 分类 自然百科2008年

HARI SREENIVASAN: You may have seen the documentary Blackfish that examined the treatment of killer whales at SeaWorld Orlando. Now at the Miami Seaquarium, another controversy is brewing over a whale named Lolita. The National Oceanic and Atmospheri

发表于:2019-01-27 / 阅读(101) / 评论(0) 分类 PBS访谈环境系列

HARI SREENIVASAN: Every year, millions of North American monarch butterflies head south for the winter in one of the insect world's most fantastic feats. But as you've likely heard, their numbers have declined dramatically in the past two decades. No

发表于:2019-01-27 / 阅读(77) / 评论(0) 分类 PBS访谈环境系列

By Paul Sisco Washington 07 May 2008 Nepal's government and the non- profit World Wildlife fund are launching a new appeal to save the critically endangered one-horned rhino. Paul Sisco reports.

发表于:2019-02-07 / 阅读(69) / 评论(0) 分类 VOA标准英语2008年(五月)

You could call it one of the world's longest games of hide and seek. 这可能是史上耗时最长的捉迷藏了。 For more than 20 years, the Ili pika (Ochotona iliensis), a type of tiny, mountain-dwelling mammal with a teddy bear face, had elude

发表于:2019-02-13 / 阅读(88) / 评论(0) 分类 阅读空间

本期内容: Conservationists have warned that the entire species of the critically endangered Javan rhino could be wiped out if a tsunami were to strike again. They once roamed the jungles of South East Asia and India, but today only 67 exist in

发表于:2019-03-03 / 阅读(163) / 评论(0) 分类 夏说英语新闻晨读