A dead dolphin has been found in Bangladesh's protected Sundarbans delta following an oil spill which has spread over several hundred square kilometers, heightening fears for the area's rare wildlife.

The Dhaka Tribune newspaper published a photo of the mammal on Sunday, saying it was found floating in a canal off the Shela river where a crashed tanker has leaked thousands of litres of oil.

Sebastiao Salgado looks at images in his "Genesis" exhibition on December …

World renowned Brazilian photographer Sebastiao Salgado has crisscrossed the globe to document the extremes of globalization, migration and unchartered territories, but is most troubled by mankind's reckless plundering of the planet, which he says is lethally short-sighted.

Four years ago, the world's nations vowed to forge a pact by the end of 2015 that would tame climate change and bequeath a safer planet to future generations.

Operational from 2020, the accord would curb heat-trapping carbon emissions and hold global warming under two degrees Celsius (3.6 degrees Fahrenheit).

Europe's physics lab CERN said Friday it was on schedule to fire up the world's biggest particle smasher again early next year, with almost double the energy of its previous run.

CERN's Large Hadron Collider (LHC) went offline in February 2013 for an 18-month overhaul after identifying what is believed to be the Higgs boson, the long-sought maker of mass theorised in the 1960s.

Norway's much-criticised commercial seal hunt could grind to a halt following parliament's decision to scrap a hefty subsidy for the controversial practice.

A majority of lawmakers voted late Thursday to cull a 12-million-kroner (1.3-million-euro, $1.6-million) subsidy for the seal hunt from the 2015 budget.

A U.S. defense satellite launched from California's central coast on Friday after weather delays caused by a major storm that drenched the state.

An unmanned Atlas V rocket carrying a classified payload for the National Reconnaissance Office blasted from Vandenberg Air Force Base at 7:19 p.m. and lit the dark, cloudy sky.

UN climate talks spilled into an extra day Saturday as negotiators battled in Lima to end a standoff between rich and developing nations on the underpinnings of a world carbon-cutting pact.

A years-old dispute over sharing responsibility for curbing greenhouse gases reemerged to drive the 12-day negotiations into a familiar end-phase of poker-like holdout, clouding prospects for the ambitious environmental accord.

An approaching storm has delayed the launch of a U.S. defense satellite from California's central coast.

An Atlas V rocket carrying a classified payload for the National Reconnaissance Office was scheduled to lift off Thursday from Vandenberg Air Force Base.

Birds use essentially the same genes to sing as humans do to speak. And flamingos are more closely related to pigeons than they are to pelicans.

These are some of the unusual discoveries that have emerged from the largest, most sophisticated mapping of the bird family tree, published in more than two dozen separate papers, eight of which are in the December 12 issue of the US journal Science.

The trafficking of African rhinoceros horn on the black market has surged 30-fold in the past 13 years and is now running "out of control," animal protection advocates said Thursday.

"In 2013, more than 2,000 rhinoceros horns from Africa were trafficked, which is 30 times more than in 2000," Celine Sissler-Bienvenu, director of the International Fund for Animal Welfare (IFAW) for France and French-speaking Africa, told reporters in Paris.