An Amazonian snake has two types of venom that kill different prey
The Amazon puffing snake has evolved to deliver two kinds of venom with one bite – one kills lizards and birds but doesn’t harm mammals, and the other does the opposite
NASA’s plans to end the ISS could put its Mars missions in danger
A report on NASA's plans to stop funding the International Space Station by 2024 reveals that crucial studies on human spaceflight won't be done in time
Boy’s brain works just fine after a large piece was removed
A boy had a third of his right brain hemisphere removed to treat his epilepsy. His brain has now rearranged itself, preventing any cognitive impairment
When you ride the subway you share bacteria with everyone in your city
Unique bacterial communities exist on most Hong Kong subway train lines in the morning, but these merge during the day, also spreading antibiotic resistance
Pulses of laser light could find murder victims in unmarked graves
Unmarked graves can be difficult and time-consuming to find, but scanning with pulses of laser light could help us pinpoint where the bodies are buried
Women have more miscarriages than live births over their lifetime
A study that brings together many different findings concludes that miscarriages are even more common than we thought
Terraforming Mars might be impossible due to a lack of carbon dioxide
We need lots of carbon dioxide to make Mars habitable for Earth life – and it turns out there isn’t enough on the Red Planet
Where does space begin? Here’s why it’s closer than you think
The jump from Earth to space is often thought to happen 100 kilometres up, but it's time to think again and bring the boundary closer to home, says Jonathan McDowell
Mass graves found on Scottish islands may be ancient tsunami victims
A rare tsunami may have struck the islands of Shetland and Orkney off the UK’s north coast 5500 years ago, killing dozens of people who had to be hastily buried
Biodiversity may prove to be the defining issue of our age
It’s an error to think we’ve got bigger problems than extinction. We must take species loss seriously, or it will come back to haunt us