A giant solar-powered plane lands in Morocco's capital Rabat after flying from Spain, completing the second leg of its pioneering journey.

Gouldian finches have different personalities depending on the colour of their heads, researchers say.

Bulgarian archaeologists unearth two skeletons from the Middle Ages pierced through the chest with iron rods to supposedly keep them from turning into vampires.

Brazil's biggest open-air landfill closes in Rio de Janeiro, a move welcomed by environmentalists but not by those working at the dump.

Wooden fish traps said to be some 9,000 years old are found in the Baltic Sea off Sweden, possibly the oldest such traps in existence.

The Great Wall of China is officially declared even longer than previously thought, at 21,196.18km (13,170.6956 miles) long, state-run media report.

Combining exercise with conventional treatments for depression does not improve recovery, research from Bristol and Exeter Universities suggests.

With forests and fish stocks declining, water demand rising and lack of action on climate change, humanity's path is anything but sustainable, the UN Environment Programme warns.