Nighttime sheep-herders rejoice, for green-glowing sheep are now a thing. Two questions, though. How? And why?

Last year, geneticists developed a new techniquethat allows them directly insert genes into bacterial DNA — or remove them. It was a powerful discovery, one that finally offered researchers a cheap and easy way to remove precise sections of a bacterial genome. And now, MIT researchers led by George Church have proven…

Our heartbeats are triggered by a steady stream of electrical signals, which cause our heart muscles to contract with a regular rhythm. For some people, however, the ‘pacemaker cells' responsible for generating these pulses can fail, resulting in an erratic heartbeat. Normally, this problem is addressed by surgery and …

A tomato genetically modified to produce a certain peptide has managed to do a pretty good job of lower plaque build up in the arteries of mice — so one day, you could help your heart simply popping down some produce.

Scientists at Hunter College in NYC have genetically engineered mice to be 500 times more sensitive than normal to the smell of TNT. And because they're attracted to the smell, the researchers hope these "hero mice" will be used to detect landmines. Should the idea work, they anticipate the creation of other GMO mice…

This is my favorite scene from one of the most ridiculous mad science movies of all time: Godsend. In which Greg Kinnear confronts Robert De Niro, who's tampered with forces that man was not meant to yadda yadda, and everything goes horribly wrong. To the point where their debate over whether De Niro was wrong to…

Hands up if you're lactose intolerant. Quite a few of you, huh? Well, welcome to the wonderful world of science, where researchers have genetically engineered a cow, just for you.

In yesterday's Daily Explainer we told you all about pain — why it exists, how it works, and how scientists are trying to quantify its effects. Though pain has clearly served an important evolutionary purpose, not everyone is convinced that we still need it. A growing number of forward-looking thinkers are suggesting…

Anosmia, the inability to smell, isn't as well-known as blindness or deafness, but it still affects an estimated two million people in the US. A new breakthrough has cured anosmia in mice... and the human impact could be far greater.

Batman isn't just the world's greatest detective and an unstoppable fighter — he's also the only person who's ever created a blue rose. Scientists have been trying to create them in the real world for decades, always without success.