Uncategorized
- Archaeology
Shipwrecks harbor evidence of ancient sophistication
Research on shipwrecks from two ancient, submerged harbors shows that frame-based shipbuilding emerged surprisingly early and then became more sophisticated within a few hundred years.
- Life
Superloud moth jams bat sonar
Newly recorded moth could be the first demonstrated case of natural sonar-jamming.
- Math
Calculating the geography of crime
A mathematician fine-tunes how to blend crime records, geography to track down serial criminals.
- Life
Love song of the dengue vector mosquito
Male and female mosquitoes harmonize pitch when in the mood.
- Health & Medicine
Sirtuin shown to control gene activity
A previously overlooked protein called SIRT6 provides some molecular clues to aging.
- Humans
Migrants settled New World in tandem
A genetic investigation of two rare types of mitochondrial DNA in Native Americans suggests that people first entered the Americas in two groups, following separate routes.
- Space
Tuned in to new noise from the cosmos
Unexplained radio noise may be signals from the early universe.
- Life
Fifty-two things to do with a bat wing
Bats swim, run, flirt and do lots of other nonflight jobs with their wings -- a fact that may have influenced evolution of the wing's architecture.
- Health & Medicine
Record low for human blood oxygen levels
Study of Mt. Everest climbers shows some bodies can tolerate low oxygen levels that are toxic to others.
- Health & Medicine
Early C-sections pose risks
Babies delivered by elective cesarean section just a week or two before 39 weeks of gestation face increased risk of respiratory and other complications.
- Space
In the young universe, black holes may have formed first
Findings pose a possible answer to long-standing question of when the black holes at galactic centers formed.
- Earth
Early asteroids unexpectedly crusty
Two meteorites retrieved from West Antarctica, fragments of an ancient asteroid, contain a type of rock commonly found in Earth’s crust but previously unseen in meteorites.
