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Almost magically, they form a temporary nest of their own bodies. The larvae and food are taken into the nursery at its centre. Tomorrow they will do the whole thing again, marching for two to three weeks to reach fresh hunting grounds, where they ca
This is Scientific Americans 60-Second Science. Im Cynthia Graber. This will just take a minute. Climate change affects seasonal eventsspring flowers open earlier, songbirds breed sooner. But what about mammals? A new study documents the effect on a
Pecos Bill, An American Folk Tale 美国民间故事《佩科斯比尔》 Today we tell a traditional American story called a tall tale. A tall tale is a story about a person who is larger than life. The descriptions in the story are exaggerated much
Obama Unveils the First Puppy 第一犬 亮相 The world has been watching US President Barack Obama closely since he took office in January this year to see whether he makes good on his promises about the economy, foreign policy and health care. But
Spot Dictation We used to live in a _____in _____London.When the family got _____, we moved to a _____house in Winbeldon , which is in South London. The house was bulit in _____but we only moved in five years ago. _____we have three bedrooms . Two of