A team of goldfish was drafted to protect world leaders at the G20 summit in South Korea.
The fish were used to monitor the purity of the water supply at a convention centre in Seoul, where the summit was held.
Oh Su-young, public-relations manager, at the centre, said: "The fish also symbolise an eco-friendly water policy, which recycles used water for the restrooms."
Prizewinning camels from beauty contests have been stolen from a farm in Saudi Arabia. The thieves used ropes to pull the camels, said to be worth about Dh15 million, towards a waiting van under the cover of dark.
Police later recovered the camels, after arresting the gang.
Gulag gets an upgrade
Prisoners in Russia will be encouraged to use sunbeds to improve their health.
They will also get spa facilities like mud baths and ultrasonic equipment. Sergei Telyatnikov, the head of the Butyrka prison in Moscow, said: "We are developing additional medical services. Even sunbeds will be put in place."
Conditions at Butyrka have been criticised after the death of an inmate who was a prominent lawyer. Other prisoners in the 19th-century jail have included the dissident writer Alexander Solzhenitsyn.
Prisoners will need permission to use the equipment, however, and will also have to pay for them.
Eat junk and lose weight
A professor of nutrition managed to lose more than 12 kilos on a diet of junk food.
Prof Mark Haub lived on sugary snacks, cream cakes and biscuits for 10 weeks as part of a dietary experiment at Kansas State University. During that time, his weight fell from 91 kilos to nearly 79 kilograms, while his levels of "bad cholesterol" also dropped noticeably.
Prof Haub said he carried out the test in part to prove that calorie counting is more important than what you eat when trying to lose weight.
He added: "Is that the bottom line to being healthy? That's another story."
Russian prisoners, take note
Whales suffer from sunburn, a team of researchers has found.
After examining whales in the Gulf of California, the researchers discovered many had blisters caused by exposure to sun.
They also found that darker-skinned whales were less likely to get burnt.
Whales were chosen for the study, which is looking at the effect of increased levels of ultraviolet radiation on wildlife because whales spend much of their time on the surface.
Prof Edel O'Toole, from Queen Mary College in London, said: "As we would expect to see in humans, the whale species that spent more time in the sun suffered greater sun damage."
Space travel made cheap
A paper aeroplane has reached the edge of space before returning safely to Earth.
Created by a team of space enthusiasts from England, the plane was lifted to a height of 27km by a helium balloon launched near Madrid in Spain.
After the balloon burst, the plane gently returned to Earth, taking photographs from a camera it had been fitted with. The plane landed with nothing worse than a small hole in one wing.