preserve

d in amber, suggesting that many species of dinosaur may have been covered in rich plumage. Researchers say the discovery will help them understand how feathers evolved into the wide variety found on modern birds. Here's Pallab Ghosh.

The popular view of meat-eating dinosaurs is that they were big, fearsome and scaly, but there's been growing fossil evidence that many of them were feathery, and now researchers have obtained actual dinosaur feathers frozen in amber. They are of dinosaurs living 70 to 85 million years ago. The feathers are incredibly well preserved. Scientists can see details of their structure even their colours. Many of the feathers seem to be small, brown and fluffy - probably for warmth rather than flight.

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Financial markets around the world have responded positively after five leading central banks said they are taking new steps to tackle the financial crisis. The banks will provide extra loans in US dollars to commercial banks to make sure they have enough funds to repay debts on time. More from our economics correspondent Andrew Walker.

五家主要的中央银行宣布采取新的措施应对金融危机，全球金融市场反应积极。这几家银行将向商业银行增加美元贷款，确保有足够的资金及时偿还债务。我们的经济记者Andrew Walker报道详细内容。

Shares in New York have gained for the fourth consecutive day, and earlier European markets also rose. The euro has made gains as well. A series of developments have given investors some reassurance about Europe. Leading central banks have indicated they'll supply extra dollars to the commercial banks. Investors also took some comfort earlier from the French and German leaders insisting that Greece is an integral part of the euro area. But there's still the risk of serious losses, if there were a wave of government defaults. The challenge of dealing with Europe's sovereign debt and banking crisis remains a daunting one.