biology

How Many Undiscovered Blood Groups Are There?

You may think that you know your blood type, but did you know that there are in fact 35 blood group systems in humans? These include well-known systems such as ABO and the Rh system (formerly known as ‘Rhesus’).


The Thoughts Of Locked-In Patients, Visualised

These aren’t Second Life punks — they’re visualisations of what people with locked-in syndrome think, and they could help us communicate with people who can’t respond physically or verbally.


Inside The Science Of Sharing Rare Blood

His doctor drove him over the border. It was quicker that way: if the man donated in Switzerland, his blood would be delayed while paperwork was filled out and authorisations sought.


How Much Coffee You Need Is A Genetic Trait

For some, three double espressos is barely enough to get them out of bed; for others, the whiff of weak latte is enough to have them jittering. Now it turns out that those differing reactions are genetic.


The Many Ways We're Using Mutant Mosquitos To Eradicate Disease

Mosquitos suck. It’s not just because of those itchy red bites we all get in the summer, either. Mosquitos suck because they’re the deadliest animals on the planet, and none of our classic strategies from combatting the threat seem to be working. That’s why we’re turning the mosquitos against themselves.


The Quest To Resurrect An Extinct Animal Without Cloning

Before there was the cow, there was the auroch, a sinewy beast that roamed Eurasia by the millions. And over thousands of years, humans bred the creature into the millions of milk-and-steak-machines we have today. The last auroch, however, died in the 17th century. A group of scientists now want to bring back the auroch by selectively breeding modern cows — domestication, but in reverse.


How Long Humans Can Live In Space -- And What Happens If We Stay Too Long

How long can humans live in space? We don’t know the answer to that. But every crew that resides on the International Space Station provides us information that we use to adjust our protocols and extends that period of time.


Why You Fart

A normal person passes wind between 10 and 20 times a day. Obviously, some of us keep that average high, but you still have to wonder: where does all that flatulence come from?


How Long You Can Survive In Space Without A Suit

Getting blown out of an airlock and into space without a suit is not a pleasant experience. But if it were to happen, just how long could you survive?


How Lizard Tails Could Help Scientists Study Human Limb Regeneration

Prosthetic technology is getting insanely good. But what if we just didn’t need it any more? What if we could simply program our genes to regrow human limbs as easily as lizards regrow lost tails? Well, scientists are getting closer to that fantastic future.


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