News in Brief
- Anthropology
A hole in an ancient cow’s skull could have been surgery practice
Before performing skull operations on people, ancient surgeons may have rehearsed on cows.
- Chemistry
Using laser tweezers, chemists nudged two atoms to bond
This is the first time researchers have purposefully combined two specific atoms into a molecule.
- Physics
A key constant’s new measurement hints ‘dark photons’ don’t exist
New measurement of the fine-structure constant is the most precise yet.
- Animals
These hummingbirds aim their singing tail feathers to wow mates
Acoustic cameras reveal how male Costa’s hummingbirds can aim the sound produced by fluttering tail feathers during courtship dives.
