With Improvements, Humanity's 'Doomsday' Seed Vault Is Safe, Probably

Posted on Categories Discover Magazine

The Svalbard Global Seed Vault in Norway. (Credit: Mari Tefre/Svalbard Globale frøhvelv) Just nine years after its official opening, the Svalbard Global Seed Vault in Norway is undergoing renovations to protect it from climate change. The work was prompted by accidental flooding that took place last week, as melting permafrost seeped into the vault’s access corridor. While the seeds were in no danger, the flooding is nevertheless a worrying sign at a facility meant to en ...read more

Conquering the ICU atop Mt. Everest

Posted on Categories Discover Magazine

(Credit: Shutterstock/Daniel Prudek) A trek to base camp at Mount Everest will leave you short of breath in a hurry. A push to the summit begins in thin air, 17,000 feet above sea level — higher than any peak in the Rocky Mountains. Once you reach the “Death Zone,” above 26,000 feet, oxygen levels drop to a third of what they are at sea level. Few climbers reach the summit, which rises 29,029 feet above sea level, without bottled oxygen. To acclimate their ...read more

Unreliability of fMRI Emotional Biomarkers

Posted on Categories Discover Magazine

Brain responses to emotion stimuli are highly variable even within the same individual, and this could be a problem for researchers who seek to use these responses as biomarkers to help diagnose and treat disorders such as depression. That’s according to a new paper in Neuroimage, from University College London neuroscientists Camilla Nord and colleagues. Nord et al. had 29 volunteers perform three tasks during fMRI scanning. All of the tasks involved pictures of emotional faces, which ar ...read more

Death From Below: Invasive Lionfish Lurking in Deep Reefs, Sending Hungry Reinforcements to the Shallows

Posted on Categories Discover Magazine

Lionfish on a mesophotic reef off Florida. Photo credit: Mike Echevarria, Florida Aquarium via NOAA In the last few decades, scientists have come to appreciate the incredible creatures living on the reefs that lie just below conventional diving limits in what is called the mesophotic zone. These incredible biodiversity hotspots are home to more endemic species than shallower reefs, and conservationists are hopeful they may serve as refuges—pockets of relatively pristine habitat out of ...read more

Why Do Flamingos Stand on One Leg?

Posted on Categories Discover Magazine

A young flamingo demonstrates it’s passive, one-legged stance. (Credit: Rob Felt/Georgia Tech) Flamingos are striking not only for their brilliant pink plumes, but for how they often stand on a single slender leg, even when asleep. Now scientists find that standing on one leg may counter-intuitively require less effort for flamingos than standing on two. It’s a finding that could help lead to more stable legged robots and better prosthetic legs. The One-Legged Problem One prior exp ...read more