Reuters

WASHINGTON (Reuters) - Researchers creating a map of human metabolism around the world have found compounds in urine that point to some surprising differences affecting blood pressure, based not on genes but on what people eat and their gut bacteria.

BEIJING (Reuters) - China will complete a new research station in the interior of Antarctica next year, state media said on Sunday, expanding its presence on the continent.

KAZAKH STEPPE (Reuters) - A Russian space capsule landed about 260 miles off course in Kazakhstan on Saturday but South Korea's first astronaut and the other two crew were safe.

KOUROU, French Guiana (Reuters) - A heavy-lift Ariane-5 rocket blasted off from French Guiana on Friday putting into orbit telecommunications satellites for Brazil and Vietnam, space officials said.

KOUROU, French Guiana (Reuters) - An Ariane-5 rocket blasted off from French Guiana on Friday putting into orbit telecommunications satellites for Brazil and Vietnam, a space official said.

WASHINGTON (Reuters) - Canada is moving to get rid of products with a chemical common in plastic baby bottles, the United States is expressing concern over its safety and some retailers are planning to stop selling these items.

WASHINGTON (Reuters) - Scientists have identified a new virus that causes bleeding and shock and killed at least one man in a remote area of Bolivia.

GENEVA (Reuters) - A cholera outbreak in Kenya has killed 67 people so far this year, while a fungus has wiped out up to 20 percent of the country's annual rice production, United Nations agencies said on Friday.

OTTAWA (Reuters) - Canada intends to become the first country to ban the import and sale of some types of plastic baby bottles because they contain a chemical that the government says could harm infants and toddlers.

WASHINGTON (Reuters) - Teams of university scientists backed by U.S. government funds hope to grow new skin, ears, muscles and other body tissue for troops injured in Iraq and Afghanistan, the Defense Department said on Thursday.

WASHINGTON (Reuters) - Teams of university scientists backed by U.S. government funds hope to grow new skin, ears, muscles and other body tissue for troops injured in Iraq and Afghanistan, the Defense Department said on Thursday.

MILAN (Reuters) - The use of antibiotics and other anti-microbial agents throughout the food chain contributes to the growth of resistant bacteria which can be passed on to humans through food, EU's food agency said on Thursday.

WASHINGTON (Reuters) - Edward Lorenz, the father of chaos theory, who showed how small actions could lead to major changes in what became known as the "butterfly effect," died of cancer on Wednesday at the age of 90, the Massachusetts Institute of Technology said.

LONDON (Reuters) - Prozac, the popular antidepressant, might also be an effective treatment for adults with a "lazy eye", according to new research.

Damian Wroclavsky is a senior correspondent with the Spanish-language service in Buenos Aires. In seven years with Reuters he has covered presidential summits, political crisis and human rights from Brazil, Uruguay, Bolivia and Cuba. In the following story, he recounts how he watched killer whales hunt sea lion pups at risk of beaching themselves.

LONDON (Reuters) - Tiny magnets have been used to deliver anti-cancer gene therapy in mice in a development that could make the treatment much more effective, scientists said on Thursday.

KUALA LUMPUR (Reuters) - Borneo's mysterious pygmy elephants may be the descendants of Javan elephants accidentally saved from extinction by a local sultan several centuries ago, the conservation group WWF said on Thursday.

LONDON (Reuters) - The first draft of Charles Darwin's "On The Origin Of Species" is among a wealth of papers belonging to the intensely private man who changed science being published on the Internet on Thursday for the first time.

WASHINGTON (Reuters) - Flu viruses evolve freshly somewhere in east or southeast Asia every year, spreading around the world over the next nine months before dying out, researchers reported on Wednesday.

VIENNA (Reuters) - Scientists are developing a tsunami warning system for the Mediterranean region which they said on Wednesday should be ready in 2011 and could save thousands of lives.