Life
- Genetics
A key to the mystery of fast-evolving genes was found in ‘junk DNA’
A new study challenges a long-held belief that essential genes change little over time.
- Microbes
50 years ago, scientists suspected microbes flourished in clouds
In 1970, scientists presented early evidence that microbes in clouds may be alive and kicking.
- Health & Medicine
Protecting the brain from infection may start with a gut reaction
In mice, immune cells in the meninges are trained to battle infections in the gut before migrating to the brain.
- Genetics
Penicillin allergies may be linked to one immune system gene
Researchers have located a shared hot spot — on the HLA-B gene — in the immune system in people who say they have penicillin allergies.
- Neuroscience
FDA advisory panel declines to support a controversial Alzheimer’s treatment
The fate of an Alzheimer’s drug, developed by pharmaceutical company Biogen, remains up in the air.
- Animals
A blue-green glow adds to platypuses’ long list of bizarre features
The discovery of platypuses’ fluorescent fur has researchers wondering if the trait is more widespread among mammals than anyone has realized.
- Life
An ancient amphibian is the oldest known animal with a slingshot tongue
A tiny amphibian that lived 99 million years ago waited for invertebrate prey before snatching them with a swift, shooting tongue.
- Plants
How passion, luck and sweat saved some of North America’s rarest plants
As the list of plants no longer found in the wild grows, botanists and conservationists search for signs of hope — and sometimes get lucky.
- Paleontology
Why South America’s ancient mammals may have lost out to northern counterparts
When North and South America joined millions of years ago, mammals from the north fared better in the meetup. Extinctions in the south may be why.
- Animals
A surprisingly tiny ancient sea monster lurked in shallow waters
Scientists have found a new species of marine reptiles called nothosaurs from around 240 million years ago.
- Animals
A fish’s fins may be as sensitive to touch as fingertips
Newfound parallels between fins and fingers suggest that touch-sensing limbs evolved early, setting the stage for a shared way to sense surroundings.
- Animals
‘Phallacy’ deflates myths about the penises of the animal kingdom
By touring nature’s many penises, Phallacy author Emily Willingham puts the human organ in its place.
