October 8, 2008
Many of us believe dinosaurs to be extinct but in truth, they surround us every day. All the world's birds, from the pigeons of our cities to the gulls of our seasides, are descended from dinosaurs, and modern science now classifies the birds with their long-dead kin. The gulf between dinosaurs and…
October 7, 2008
It is the instinct of every mother to protect their children as they grow up, shielding them from the dangers of the outside world. Right from birth, life can be a difficult experience. Within a few hours, the child is sent from a safe, warm, constantly-nourished cocoon into a bright, noisy…
October 6, 2008
There is a widespread belief, that being overweight or obese is a question of failing willpower, fuelled in no small part by food, fitness and beauty industries. But if we look at the issue of obesity through a scientific spyglass, a very different picture emerges. Genes, for example, exert a…
October 5, 2008
We like to think that we are masters of our own fates. The thought that others might be instead controlling our actions makes us uneasy. We rail against nanny states, we react badly to media hype and we are appalled at the idea of brainwashing. But words and images are not the only things that…
October 4, 2008
Sniffing brings molecules in the air around us into our nose, where they are detected and manifested in our brains as smells. But try the same trick underwater and you would rapidly choke or drown. Nonetheless, smell is a tremendously important sense for most mammals and at least two species…
October 3, 2008
According to Christian lore, Mary gave birth to baby Jesus without ever having had sex with Joseph. A biologist might describe this as 'parthenogenesis', the Greek version of the more familiar phrase 'virgin birth'('parthenos' means virgin, and 'genesis' means birth). The New Testament aside,…
October 2, 2008
You are not the person you used to be. Two weeks ago, the surface of your skin was covered with a completely different set of cells, which have since died and flaked off. Four month ago, you had a wholly different set of red blood cells. Since birth, your body has grown tremendously in size…
October 1, 2008
The world is currently home to 6.5 billion people and over the next 50 years, this number is set to grow by 50%. With this massive planetary overcrowding, Band Aid's plea to feed the world seems increasingly unlikely. Current food crops seem unequal to the task, but scientists at Texas…
September 30, 2008
I am walking strangely. About a week ago, I pulled something to my left ankle, which now hurts during the part of each step just before the foot leaves the ground. As a result, my other muscles are compensating for this to minimise the pain and my gait has shifted to something subtly different…
September 29, 2008
Two strangers are having a normal conversation in the middle of a large crowd. No one else can see them. No one else can listen in. Thanks to advanced gadgetry, they are talking in coded messages that only they can decipher. These invisible conversationalists sound like they've walked out of a…
September 28, 2008
You are on a date and by all accounts, it's going well. Midway through dinner, you excuse yourself and head to the bathroom where, to your chagrin, the mirror reveals that you have a streak of sauce on the side of your face. Embarrassed, you wipe it away and rejoin your date.
It's a fairly…
September 27, 2008
In medieval times, crusading Christian knights cut a swathe through the Middle East in an attempt to reclaim Jerusalem from the Muslims. The Muslims in turn cut through the invaders using a very special type of sword, which quickly gained a mythical reputation among the Europeans. These '…
September 25, 2008
Heh. Roffle.
September 25, 2008
The art of auctioning is an ancient one. The concept of competitively bidding for goods has lasted from Roman times, when spoils of war were divvied up around a planted spear, to the 21st century, when the spoils of the loft are sold through eBay. But despite society's familiarity with the concept…
September 24, 2008
A caterpillar is an eating machine - a mobile set of mandibles, whose sole mission is to survive long enough to munch its way to adulthood. Standing in their way are spiders, birds and predatory insects that want to eat them, and parasitic wasps that want to convert them into living incubators for…
September 23, 2008
Imagine that you have been given responsibility over a tract of land. Your goal is to maintain its precious biodiversity (increasing it if at all possible), prevent the local habitats from becoming degraded and among all that, find a way to eke out a way of life. Of the many possible ways of doing…
September 22, 2008
Well this is exciting... A year ago, I was asked to contribute to a book that would detail 1000 awesome scientific thinkers, discoveries and events over the last century, to be called the Little Black Book of Science. And after a long silence, it's finally out, albeit under the much less good title…
September 22, 2008
Soooo... I have good news, bad news and good news.
The good news (well for me anyway) is that as of Friday I will be away for month of blissful holiday. If you listen closely, you will probably hear the sound of me exhaling loudly and cheering even more loudly as my wife and I head off to…
September 20, 2008
The decades that make up a typical human lifespan can seem like vast stretches of time to us. But to the forces of evolution, they are mere temporary blips. Common wisdom has it that evolution occurs over geological timescales - thousands and millions of years. As such, evolutionary biology…
September 19, 2008
Genetically modified crops have received a frosty welcome in the UK, and more widely in Europe. Those opposed to such crops worry (among other things) that they could affect the flora around them by outcompeting them or by spreading their altered genes in a round of genetic pass-the-parcel. Now, a…
September 18, 2008
When we're suddenly confronted with a shocking image, our skin becomes moist and we blink strongly. These actions are automatic and unintentional; they happen without conscious thought. So it may come as a surprise that they can also predict some of our most seemingly considered beliefs - our…
September 16, 2008
Our languages are replete with phrases that unite words evoking a sense of cold with concepts of loneliness, social exclusion or misanthropy. When we speak of icy stares, frosty receptions and cold shoulders, we invoke feelings of isolation and unfriendliness. But cold and solitude are more than…
September 15, 2008
We like to idolise fearlessness and we equate it to bravery but there is a fine line between that and stupidity. Immunity to the pangs of fear would leave someone unable to assess threats to themselves and to other people, which means that fear not only has consequences for an individual but for…
September 13, 2008
As you read this post, your computer is probably busy. You may have multiple programs running in the background, with email clients, anti-virus software or file-sharing software all competing for valuable memory. The ability of computers to multi-task has grown substantially in recent years, as…
September 11, 2008
Some 230 million years ago, giant reptiles walked the Earth. Some were large and fearsome predators; others were nimble and fleet-footed runners; and yet others were heavily armoured with bony plates running down their backs. Their bodies had evolved into an extraordinary range of shapes and sizes…
September 10, 2008
The forests of east Asia are home to giant honeybees. Each one is about an inch in length and together, they can build nests that measure a few metres across. The bees have an aggressive temperament and a reputation for being among the most dangerous of stinging insects. Within mere seconds, they…
September 9, 2008
There's a growing tendency for advertisers to hype up modern movies with hyperkinetic trailers that end with a blitz of imagery from the film. Seconds after the clip ends, the onslaught of explosions, punches and screeching tyres are probably crystal clear but minutes later, and your recollection…
September 8, 2008
In September last year, a team of scientists launched a squad of tiny animals into space aboard a Russian satellite. Once in orbit, the creatures were shunted into ventilated containers that exposed them to the vacuum of space. In this final frontier, they had no air and they were subjected to…
September 6, 2008
A stranger walks up to you and a friend and offers to give you both £100. As always, there is a catch - your friend must choose how to split the money between you. Accept his offer, and you both keep your respective shares; reject it, and you both come away empty-handed. Now imagine your…
September 4, 2008
The image on the right is both beautiful and exciting. Let me explain why. It's the paw of an embryonic mouse and a team of geneticists have inserted a fragment of human DNA into its cells. The fragment contains an "enhancer" element, a short span of DNA that switches other genes on and off; in…
