文章列表

• 1.英语听力：探索发现 2012-12-07 美洲大平原 American Serengeti—18
• The scene is set for a daily ice age drama. Only the very largest are safe now. Patience is the key, the lionesses close in, waiting for their opportu...
• 2.英语听力：探索发现 2012-12-05 美洲大平原 American Serengeti—17
• And all this meat in one small area attract the scavenger, the short-faced bear. Led by his super sensitive nose, his long limbs carry him many miles ...
• 3.英语听力：探索发现 2012-12-02 美洲大平原 American Serengeti—16
• So let's go back in time, back 13,000 years to relive one day in the life of North America's great ice age plains. It's early morning at the end of a ...
• 4.英语听力：探索发现 2012-11-30 美洲大平原 American Serengeti—15
• Larger than any lion alive today, this would have been an awesome predator. These caves were probably its winter den. With such abundant game down on ...
• 5.英语听力：探索发现 2012-11-28 美洲大平原 American Serengeti—14
• 13,000 years ago, the ice age cheetah was the pronghorn's greatest enemy. And pronghorn would have needed all their amazing speed. The American cheeta...
• 6.英语听力：探索发现 2012-11-25 美洲大平原 American Serengeti—13
• A lone wolf weighs as much as four coyotes, but one on one it's still no match for a bison. Wolves, though, live and hunt in packs of up to 15 and whe...
• 7.英语听力：探索发现 2012-11-23 美洲大平原 American Serengeti—12
• Because these two bull mammoths both had broken tusks, they could have fought at closer quarters than they would do normally. Twisting and turning, th...
• 8.英语听力：探索发现 2012-11-21 美洲大平原 American Serengeti—11
• In a Colorado gully, hunters carried out a mammoth massacre, leaving behind the remains of at least 16 animals. The site recreated here contains a tre...
• 9.英语听力：探索发现 2012-11-18 美洲大平原 American Serengeti—10
• Colombian mammoths had to feed almost round the clock to fuel their bulky bodies. But as the ice age ended, food was not the mammoths' biggest problem...
• 10.英语听力：探索发现 2012-11-16 美洲大平原 American Serengeti—9
• Bison calves are born in summer and can run within a few hours of their birth. They have no choice. The herd won't wait in its eternal quest to find n...