SCIENCE

Hundreds of Olive Ridley turtle hatchlings have been let out into the Pacific Ocean in Tomatlan, Mexico.

Ibuprofen prevents memory problems in people using cannabis for medical purposes.

Storm building up in Bay of Bengal with 90km/h winds expected to intensify.

Report shows fifth of people with HIV are unaware of their infection.

Research uncovers secrets of Mars' birth from unique meteorite found in Sahara.

If Comet of the Century makes it round the sun, it will be so bright it will be visible in the day.

National Disaster Mitigation Agency spokesman says Mount Sinabung will erupt again as thousands remain stranded.

Scientists use 3D printers and CT scans to make copies of dinosaur fossils.

Researchers find fruit bat population spanning 4,500km carries two deadly viruses.

American children's cardiovascular fitness has dropped 6% every decade since 1970.

DNA shows early modern humans had sex with Neanderthals, Denisovans and 'mystery species'.

Global climate report highlights record CO2 emissions driven by China.

Canada outreach worker expecting more cases of krokodil use to surface in coming months.

Researchers find promiscuous female mice have sexier sons.

India planning to use birth control pills to tackle 'rhesus monkey menace' in New Delhi and other cities.

Comet Ison will catapult around the sun at speeds of up to 845,000mph.

Flights disrupted and thousands prevented from returning home after Mount Sinabung and Mount Merapi erupt.

Europe's most active volcano blows its top, but locals in no danger.

Hunter-gatherers in Europe were the first people to have pet dogs.

Government mulling locations of first UK space launch base with Wales believed to be a front runner.

Experts warn about dangers of cosmetic surgical procedures on genitals.

Scientists reveal what enigmatic cosmic jets are made of after decades of uncertainty.

Researchers develop microbicide they say prevents transmission of HIV.

Scientists predict ocean acidification will increase by as much as 170% by 2100.

Surgeons in Wales to use 3D technology to create titanium implants for facial reconstruction.

WWF capture first sighting of saola in the wild in the 21st century.

Toronto scientists prove radar invisibility cloak can be adapted to different sizes and types of object.

Oldest big cat fossil dating to five million years fills gap in evolutionary history.

World Health Organisation says disease spread from Pakistan into Egypt and on to Syria.