Fishermen collect dead "popocha" fish at the Cajititlan lagoon in Tlajomulco …

Fishermen used shovels, wheel-carts and trucks in western Mexico to pull tons of dead fish out of a lagoon that has been the scene of four fish kills this year.

Markings dating back 40,000 years suggest Neanderthals were considerably more sophisticated than previously thought, researchers say.

They reached their conclusions after the discovery of engravings deep in Gorham's Cave in Gibraltar -- the first Neanderthal cave etchings found anywhere in the world.

An India-backed mining consortium could shelve controversial plans to dump dredging waste in the Great Barrier Reef, with alternative sites on land being considered amid growing environmental concerns, Australia said Tuesday.

Environment Minister Greg Hunt said there was an "emerging option" that could see the consortium -- India's Adani Group and Australia's North Queensland Bulk Ports and GVK Hancock -- submit a proposal suggesting onshore dumping locations.

Japanese space scientists have unveiled the asteroid hunting space probe they hope to launch later this year on a mission to mine a celestial body.

The probe, named Hayabusa-2, is expected to be flung into space on a rocket for a mammoth four year voyage to the unpoetically-named 1999JU3 asteroid.

A jinxed new-generation nuclear reactor for Finland is to begin producing electricity in 2018, nine years late, one of the main partners in the project, Areva of France, said on Monday.

The expected losses arising from delays on construction of the plant, using advanced technology known as EPR, remain at 3.9 billion euros ($5.1 billion), Areva said.

The governor of disaster-struck Fukushima agreed Monday to accept the "temporary" storage of nuclear waste from the Japanese accident, paving the way for an end to a years-long standoff.

Royal Dutch Shell has submitted a new plan for drilling in the Arctic offshore Alaska, more than one year after halting its program following several embarrassing mishaps.

The plan to drill two new wells in the potentially oil-rich but environmentally sensitive region in the summer of 2015 is not a final decision, the company stressed.

Japan's Panasonic will develop a water purification system together with India's Tata Group, tapping into a fast-growing market in Asia, a media report said Saturday.

The electronics giant has developed a prototype of a device that will detoxify harmful substances in groundwater, making it potentially safe to drink, the Japanese economic daily Nikkei said.

A long-gone group of ancient people known as Paleo-Eskimos lived in isolation in the North American Arctic for more than 4,000 years, said a study on Thursday.

They trekked from Siberia across the Bering Strait to their new home, and made no contact with other cultures who'd made the same journey at different times in history, including Native Americans and the Inuit people.

Music triggers different functions of the brain, which helps explain why listening to a song you like might be enjoyable but a favorite song may plunge you into nostalgia, scientists said on Thursday.

Neuroscientists in the United States used a functional magnetic resonance imaging (fMRI) scanner to map brain activity in 21 young volunteers as they listened to different types of music, including rock, rap and classical.