A new sale record of $736,000 is set for a bluefin tuna at Tokyo's Tsukiji fish market, almost doubling last year's price.

Warming oceans and melting sea ice may have a major impact on harp seals, the doe-eyed animals that are the prime target for Canada's annual seal hunt.

An early clinical trial of a hepatitis C vaccine has shown "promising" results, according to researchers at Oxford University.

A document allegedly detailing non-lethal weaponry in development by the US military is published online.

China's biggest airlines will not pay a new European Union tax aimed at cutting carbon emissions, their trade body says.

America's classified X-37B spaceplane is very probably spying on China, according to a report in the leading British publication Spaceflight.

The Pentagon's premiere research agency has chosen a former astronaut to lead a foundation that is designed to take humanity to the stars.

German experts identify a new species of marine giant from a time when most such reptiles were thought to have died out.