Life
We summarize the week's scientific breakthroughs every Thursday.
- Neuroscience
Brain’s growth, networks unveiled in new maps
Two large-scale efforts describe human and mouse brains in detail.
- Neuroscience
Lost sleep could mean lost neurons
A new study shows we may not be able to make up for chronic sleep deprivation. The protein SirT3 might protect us against late nights, but all-nighters may produce neuron loss.
- Paleontology
Sea stars sighted predators 79 million years ago
Sea stars may have evolved complex lenselike structures to detect and evade predators at least 79 million years ago.
- Science & Society
Misconduct found in Japanese stem cell research
An investigation into reports describing a type of stem cells called STAP cells has found that the lead researcher is guilty of scientific misconduct.
- Genetics
Neandertal legacy written in Europeans’ fat metabolism
DNA inherited from Neandertal interbreeding may have helped people adjust to Europe’s environment.
- Animals
Zebra stripes may be mainly defense against flies
The function of zebra stripes may not be for camouflage or cooling, a new analysis finds.
- Genetics
Gene editing reverses liver disorder in mice
By editing a mouse's genes with bacterial proteins, scientists have reversed a rare liver disorder in the animal.
- Paleontology
Microbes indicted in ancient mass extinction
About 252 million years ago an estimated 96 percent of all species were wiped from Earth, and now scientists have a new suspect in the killing — methane-belching microbes.
- Psychology
Twenty-two emotions are written on our faces
People’s faces express at least 22 feelings – far more than the six emotions scientists previously recognized.
- Health & Medicine
This rare skull-thickening disease led to a 3-D-printed replacement
A skull implant made with a 3-D printer replaced the 2-inch-thick skull of a Dutch woman with the rare van Buchem disease.
- Neuroscience
Ha! The Science of When We Laugh and Why
Scott Weems, a neuroscientist, takes readers on a wide-ranging tour that explains what humor is and why readers should care.
- Animals
As their homes warm, salamanders shrink
Many species of salamanders respond to climate change by getting smaller.
