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Megafauna such as Glyptodon were muck-spreaders. Pavel Riha

Megafauna extinction affects ecosystems 12,000 years later

If Earth were like a human body, large animals might be its arteries, moving nutrients from where they’re abundant to where they’re needed. Currently the planet has large regions where life is limited…
A good yarn: chromosomes are shared out to dividing cells by mitotic spindles. Triesquid

‘Mitotic spindles’ could help develop better chemo drugs

Cells use a tiny machine called the mitotic spindle to share genetic material equally between cells when they divide. But when this process goes wrong it can lead to cancer. For many years we’ve been interested…
Right on cue with gaping jaw and rows of teeth. Loren Javier

It’s silly season, but there is a real shark threat to fear

Each summer, for several years in a row, a tabloid would send me a picture of a shark fin photographed off Cornwall and ask if it was a Great White. “No,” I would patiently explain, “it is a harmless basking…
Cyber-bullies can have access to potential victims round-the-clock. wentongg

With the right tech, online bullies can be outsmarted

Recent revelations about the frequency with which children experience cyber-bullying have caused alarm among parents, advertisers that feature on social media sites and even the Prime Minister. Social…
Can Stelios run supermarkets as well as he runs airlines? Barry Batchelor/PA

Stelios’ easyFoodstore will struggle to get off the ground

How low can you go? That is the question that easyJet founder Stelios Haji-Ioannou has posed to grocery shoppers with the announcement of plans for “easyFoodstore”, a budget grocery shop in Croydon, south…
Lucky it’s pointing the wrong way this time. Nasa's Marshall Space Flight Center

Solar storms could lead to a global techno-meltdown

In 1859, from August 28 to September 2, we were given an important lesson about how vulnerable we are to the Sun’s power. The Carrington Event, named for the amateur astronomer who recorded it, Richard…
Miami, New York City… who’s next? Allstar/Fox 2000/Sportsphoto Ltd

The inevitability of sea level rise

Small numbers can imply big things. Global sea level rose by a little less than 0.2 metres during the 20th century – mainly in response to the 0.8 °C of warming humans have caused through greenhouse gas…
He’s got the hump. PA/Ben Birchall

Camels likely suspects behind MERS, but mysteries remain

The discovery that dromedary camels may be a key source of the virus behind Middle Eastern Respiratory Syndrome (MERS) looks to unravel one of the biggest mysteries surrounding outbreaks of the deadly…
Yes we can (command a fat fee): Jim Messina, right. Obama for America via Creative Commons

Dog whistlers and numbers men – importing election talent

As the political parties start gearing up for the 2015 general election it looks as if the Conservatives have got in early with the big-name signings to drive their campaign. The news last week that Barack…
Which self are you expressing when you vent online? west.m

140 thoughtless characters cost dear in academia

The censuring of an academic in the US for sending out an offensive tweet has led many university tweeters to pause for thought. Geoffrey Miller, an Associate Professor of Psychology at the University…
Ronnie and Jo Wood pre silver separation. Sean Dempsey/PA

Silver separation could be a headache for women

Longer and healthier lives mean more married couples in their 60s are spying the possibility of second chances. Office for National Statistics figures released yesterday suggest the trend for “silver separators…
Bricks and mortar, yes, but how much insulation under the tiles? Rui Vieira/PA

Plugging 25 million leaky houses is no small task

The UK has some of the oldest – and leakiest – housing stock in the western world. The vast majority of it will still be standing in 2050, the year by which the government has set itself a target to cut…
Silicone? In the clear. Owen Humphreys/PA

Cricket finds itself in a hot spot over silicone on bats

The Ashes series is already plagued by controversy over technology’s role in cricket. The latest allegations of equipment tampering haven’t helped. Australian TV station Channel Nine has reported some…
The issue of suicides among people with mental illness is staring the media in the face. PA/Wannaoreao

We ignore the rise of suicide in people with mental illness

Despite public campaigns to combat stigma around mental illness, people with mental health problems still face ongoing discrimination. And while some sections of the media focus on mental illness in cases…
Looks like five more years. Wikimedia Commons

Sham or not, election flaws unlikely to unseat Mugabe

The recent elections in Zimbabwe were always likely to be problematic. Despite the hope of former South African president Thabo Mbeki in 2007 that his mediation efforts would lead to an vote that was “conducted…