英语听力：自然百科 大迁徙之繁衍生息 Need to Breed—17

Even fearsome wasps high in treetops, are no match for the implacable ants. They watch helplessly as their own larvae are stripped from their honeycomb cribs. Now, the porters take up their burdens, they carry the movable feast back to the unquenchab

英语听力：自然百科 大迁徙之繁衍生息 Need to Breed—18

Here and now, cub and cub, pound for pound. The bodies of the falling litter the battle field. The females approach to the victorious males willingly, and with a discerning eye. They gravitate to the i/ storm, knowing that only the fittest gladiators

英语听力：自然百科 大迁徙之繁衍生息 Need to Breed—19

There is no mistaking yet. She is ready to mate. Finally, the lover/ unites a bit briefly. After two months, the breeding season is over. It is time for the long track back to their southern feeding grounds, but the females carrying the next generati

英语听力：自然百科 古巴环保行动

It's an island known for its rich cultural history and environmental treasures but human activities such as tourism and deforestation threaten some of Cubas key habitats, which is why the World Wildlife Funds Julia Langer collaborates with local part

英语听力：自然百科 意大利的死亡祭礼

In Fontanelle, Italy, a large ancient cemetery with an unusual history is about to reopen. It is a place where the living try to reconnect with lost loved ones through the skulls of strangers. The site is an ancient rock quarry. Ancient Greeks mined

英语听力：自然百科 考拉熊

It seems these days mobile phone technology can do just about anything, even help scientists learn more about the sex life of a koala. The bellows of male koalas may sound a bit raucous, but the team says so far data appears to indicate the calls may

英语听力：自然百科 Mystery Pelican Die-off in Calif 神秘的塘鹅死亡事件

Wild life experts are trying to figure out why sick, disoriented and bruised California brown pelicans are being found in record numbers up and down the west coast of North America. The birds, some of them dead, have been spotted from Washington Stat

英语听力：自然百科 匈牙利地下湖

Divers in Budapest, Hungary has spent the last few weeks exploring the depth of what may be one of the biggest underground lakes in the world. The huge subterranean thermal lake was discovered in early 2008 and in a cave complex below a Turkish bath.

英语听力：自然百科 南极物种大发现

Researchers have made some interesting discoveries near Antarctica. A team of scientists from the British Antarctic Survey and University of Hamburg have published the first comprehensive inventory of sea-and-land animals, near the tip of the Antarct

英语听力：自然百科 追寻达尔文的踪迹

In 1831, naturalist Charles Darwin set out on a voyage to the Pacific aboard the HMS Beagle. Darwin arrived in Brazil in 1832, and began documenting the enormous biodiversity of the rainforest of Rio de Janeiro province. In his diary, he mentions par

英语听力：自然百科 冰岛矮人族传说

Elves and trolls hold a special place in the hearts of the people of Iceland. The tradition and mythology of the countrys small folk dates back to the 10th century AD, when the first Norwegian Vikings settled on the island. Tales of elves were first