A Chinese spacecraft with three astronauts aboard will return to Earth Friday after a nearly two-week mission that included the country's first manual docking in orbit, state media said.

The Shenzhou-9 will return to Earth around 10:00 am (0200 GMT) on Friday, the state Xinhua news agency said Thursday, quoting an unnamed space program official.

Dinosaurs may have been warm-blooded, scientists said Wednesday, in a finding that could debunk one of the most commonly-held images of the extinct giants.

Researchers in Spain and Norway reported in the journal Nature they had found tree-like growth rings on the bones of mammals, a feature that until now was thought to be limited to cold-blooded creatures ... and dinosaurs.

A short, gangly relative of man that lived in South Africa two million years ago ate bark and wood, the only early hominid known to have done so, a report said Wednesday.

While its ancient relations opted for softer grasses and shrubs, Australopithecus sediba, an upright-walking tree climber, "included quite a large amount of hard food in its diet," anthropologist Amanda Henry told Agence France Presse.

Scientists have given a 21st-century makeover to the nickel-iron battery, a gadget conceived by Thomas Edison during the era of the steam engine and horse and buggy.

The upgraded battery can be recharged in around two and half minutes, as opposed to several hours at present, and discharges in under 30 seconds.

The green parrots that live on the tropical paradise of Seychelles fly into the bamboo stalks next to Micheleine Georges' 150-year-old farmhouse at dusk. The birds are small and cute. They are also marked for death.

The eradication of the Indian ring-necked parakeet is the goal so that a Seychelles' national bird — the black parrot — may live, those carrying out the EU-funded project say. The black parrot could be wiped out by a disease that the Indian ring-necked parrot carries.

A medical transplant center on the Italian island of Sicily said Monday it had carried out the world's first partial liver transplant using only a robot to remove the organ of the donor.

According to a statement from the ISMETT transplant center in Palermo, only the arms of a robot entered the abdomen of the 44-year-old donor looking to save his 46-year-old brother suffering from cirrhosis of the liver.

Artistic types are not the only ones whose eyes glaze over when confronted with too many numbers, according to research out Monday that suggests scientists, too, find lots of equations hard to read.

The study by researchers at the University of Bristol analyzed nearly 650 studies on ecology and evolution published in three leading journals in 1998.

It's not just man's closer primate relatives that exhibit brain power. Dolphins, dogs and elephants are teaching us a few lessons, too.

Dolphin brains involve completely different wiring from primates, especially in the neocortex, which is central to higher functions such as reasoning and conscious thought.

From Cape Hatteras, N.C., to just north of Boston, sea levels are rising much faster than they are around the globe, putting one of the world's most costly coasts in danger of flooding, government researchers report.

U.S. Geological Survey scientists call the 600-mile swath a "hot spot" for climbing sea levels caused by global warming. Along the region, the Atlantic Ocean is rising at an annual rate three times to four times faster than the global average since 1990, according to the study published Sunday in the journal Nature Climate Change.

Not unlike some among their human counterparts, male blue tits lose interest when their mates' beauty starts fading, staying out longer and neglecting their offspring, a report said Monday.

Scientists who dulled the bright blue head tinge that crowns the female of the species, subsequently noticed the males skulking off for more alone time and making fewer trips to feed their chicks.