A complex question about a crocodile stalking its prey that baffled Scottish schoolchildren was far too challenging, examiners have admitted.

The technique, used to pace or 'even out' abnormal heart rhythms in live fruit flies, could one day be an alternative to electrical stimulation by pacemakers, the researchers say.

Scientists discovered fragments of woolly mammoth skin along with other remains from six of the ice age giants on the Lyakhovsky Islands, off the coast of Siberia in the Arctic Ocean.

Australian travellers should think twice before posting pictures of their boarding passes on social media, as it is revealed hackers could use the barcodes to access personal information.

Sony said it would 'consider its options' if its mobile division failed to make a profit, while BlackBerry (boss John Chen pictured) said it would 'never say never' to closing hardware teams.

Fossils of the species, discovered on the island of Unalaska in the North Pacific, have revealed a tooth and jaw structure unlike anything seen before.

In the experiment, carried out by the University of Vienna, two captive ravens had to simultaneously pull the two ends of one rope to slide a platform with two pieces of cheese into reach.

Scientists at the University of California Los Angeles say they have found distinct patterns of molecular markers in the genomes of gay men.

An international team of scientists led by the University of Liverpool's School of Environmental Sciences analysed magnetic records from ancient igneous rocks to arrive at the date.

It would be only the third recorded global bleaching event in history, with areas such as Australia's Great Barrier Reef set to be hard hit, scientists at the University of Queensland said.

Scientists at the Buck Institute for Research on Aging in California and the University of Washington say their findings could help to identify new drug targets to slow the pace of aging in humans.

Professor Alex Zhavoronkov works tirelessly to extend life expectancy and to evangelise about his discoveries, writes JANE FRYER.

More than 8,400 photographs from Nasa's moon missions have been uploaded to Flickr in high resolution by a team of enthusiasts based in Virginia.

Footage of the odd creature, discovered in a remote village in Thailand, shows it laid out on a table while a crowd gathers - prodding its scaly skin and head while lighting candles and incense.

A strange series of lights above the Popocatepetl volcano in Mexico have got alien hunters excited. Scientists, however, say they are probably an atmospheric phenomenon caused by the volcano.

Scientists working at the Large Hadron Collider in CERN, near Geneva, tried to replicate the quark-gluon plasma from the early universe. It formed tiny droplets that behaved like a 'perfect liquid'.

The new system from Alcatel, Inmarsat and Deutsche Telecom will combine a satellite with with high speed LTE base stations on the ground.

A study, led by Stony Brook University in New York, used high-speed cameras to track and compare the torsos of humans and chimpanzees while walking.

The global survey of 3,563 was carried out by tech site TechRadar. Participants trusted Apple and Google the most, followed by Microsoft and the government. They trusted Facebook the least.

Georgia the hamadryas baboon was spotted engaging in the unusual behaviour at Paignton Zoo in Devon. Similar behaviour has been observed in Sulawesi crested macaques.

South Valley University in Egypt and the University of Wisconsin-Madison created the dip called LPE, a phospholipid, that naturally occurs in egg yolks and soya beans.

Japanese firm Spread plans to automate every stage of its lettuce growing process (pictured) and believes the machines will boost production while cutting labour costs in half.

The creature (pictured) was found on Mount Dako in the region of Tolitoli, Indonesia. It has been officially classified as Hyorhinomys stuempkei. Hyorhinomys is Greek for hog nose rat.

A tweet by the managing editor of NASASpaceFlight has triggered speculation that SpaceX is preparing to make a major announcement about plants to build a colony on Mars.

The app was created by friends Julia Cordray and Nicole McCullough based in Canada. It had been dubbed 'Yelp for people' but soon came under fire for being 'irresponsible' and 'horrible'.

A Martian crater now being explored by the Nasa rover Curiosity once contained lakes that remained for up to 10,000 years at a time - long enough to support life.

Scientists at the Institut Marques in Barcelona claim to have shown for the first time that unborn babies can hear by the time they reach 16 weeks gestation, and that they respond as if they're singing.

Called simply Doodle, it has been integrated into Facebook's photo editor and is designed to 'bring attention to a particular object, scribble something funny on a friend's face or even paint a picture.'

The walking, talking eight inch tall robot, called Robohon, can dance along to your music, recognise its owner and even project movies out of its head.

Geologists at the University of Wisconsin-Madison found evidence in rock cores (pictured) that may change scientists' understanding of when Earth's oxygen levels rose for the first time.

Takaaki Kajita of Japan (pictured) and Arthur McDonald of Canada won the Nobel Prize in physics on Tuesday for the discovery that mysterious particles called neutrino change their identity.

Apple has been granted a patent for what could be its tiniest gadget yet. The 'iRing' features a tiny touchscreen, apps to be operated with the thumb, a camera, and can even be used to send texts.

New evidence examining the origins of an ancient papyrus that suggests Jesus was married has raised new questions when and where the torn scrap was created.

Meteorologists at the Aarhus University in Denmark and the Danish Meteorological Institute have found evidence that bacteria living high in the atmosphere may aid the formation of ice in clouds.

Working with French firm Eutelsat, the Amos-6 satellite (illustrated) will provide large parts of east, west and south Africa with web access starting in the second half of 2016.

Researchers found  an 'exaggerated view of intellectual ability and knowledge' generally predicted academic achievement, especially on individual course work.

Scientists at the University of New South Wales have build the world's first logic gate using quantum bits or qubits (illustrated). They say it is a 'game changing' leap towards practical quantum computers.

The head, tusks, ribs and set of vertebrae from a woolly mammoth have been discovered on a farm in Lima Township, in Michigan.

Most of colour-changing apps, such as Twilight and CF.lumen, work the same way by placing a red overlay on the screen to transform its colour temperature and reduce eye strain.

Google - now known as Alphabet - has ditched the motto from its rule book, and given itself permission to be a little bit evil after all. It is a far cry from the golden rule dreamed up by the Google founders.

The Cypress umbrella (pictured) is the brainchild of two engineers in Vancouver and folds up in a way that keeps water droplets inside the brolly's canopy and case.

Computer scientist Ray Kurzweil, founder of the California-based Singularity University, claims that by 2030s humans could be using nanobots to connect our brains to the cloud.

Researchers found the birds can even remember an animal or person seen with a dead crow and were able to easily distinguish between people or hawks carrying dead crows and other birds.

The SpaceX founder said the plan would use a new type of 'nuclear pulse bomb' to create two suns in the Martian atmosphere to warm the planet.

In the experiment, Dmitry Kishkinev of Queen's University Belfast and Nikita Chernetsov at the Biological Station Rybachy housed caught Eurasian reed warblers at Rybachy, Russia.

The breakthrough could revolutionise the way computers are made, and replace silicon. The carbon chips are set to be dramatically faster, smaller and more powerful.

New York-based firm Canary has developed a smart security system that detects unusual activity and records high definition video of it, sending it straight to the homeowners smartphone.

According to the complaints, the button overheats at random times and the only way to solve the problem is to carry out a hard reset. Apple has not commented on the reports.

Nobel judges in Stockholm, Sweden, awarded the prestigious prize to Irish-born William Campbell, Satoshi Omura, of Japan, and Tu Youyou - the first-ever Chinese medicine laureate.

Scientists at the University of Maryland say the academy would help speed up the ability of robots to learn new tasks in everything from cooking to building cars.

Jacob Bloomberg, a research scientist at Nasa, discovered that balance control was one of the biggest problems for astronauts who try to adjust to life back on Earth.

Mamdouh Eldamaty, Egypt's antiquities minister, said scratching on the northern and western walls are similar to those found by Howard Carter on the entrance of King Tut's tomb.

A morbid Instagram account reveals the most depressing, bizarre and downright uncomfortable place names in the world, under the tagline 'Somewhere to go, when you're feeling low'.

The findings come from the 1000 Genome Project, led by the University of Washington. Researchers studied the genomes of 2,500 people from across the globe.

The ripples (pictured) were spotted while astronomers from the Paris Observatory were searching for signs of clumpy or warped features in AU Mic's disk.

The Holigost or Holy Ghost, a 600-year-old vessel, was seen buried in the mud of the Hamble in Hampshire by historian Dr Ian Friel. Historic England is now taking steps to protect it.

Researchers at the University of Oklahoma said TV dramas exercise our minds because we must keep track of emotions and relationships.

University of Sydney researchers found exercise induces 1,000 molecular changes in the body. They have now created the world's first 'blueprint' of these to try and mirror the health benefits of exercise.

The High Resolution Imaging Science Experiment (Hirise) camera on board the Mars Reconnaissance Orbiter managed to capture the image in the North Polar layered deposits.

Dorsey has served as interim CEO for the past three months, after former Dick Costolo stepped down in July, and his appointment caused a 7% jump in the firm's stock price.

Scientists working off west Africa in the Cape Verde Islands (pictured) have found evidence of a megatsunami that dwarfs anything humans have ever seen.

The ocean south of Greenland and Iceland has experienced the coldest temperatures on record so far this year at a time when much of the world has been warmer than normal.

Employees working within a strict hierarchy are more likely to waste time dealing with demands and bureaucracy - meaning they cannot focus on more important work - according to a study.

In a much-anticipated announcement, Nasa has revealed stunning new images of Pluto's atmosphere and water ice, which could boost the chances for finding a liquid sea and alien life.

The animation shows the process of a vaginal birth, the baby's journey from the womb to the outside world, from contractions to dilation, crowning and delivery.