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PaleontologyEarful of data hints at ancient fish migration
Small bony growths that developed in the ears of fish more than 65 million years ago are providing a wealth of information about the species’ environment and lifestyle.
By Sid Perkins -
PhysicsNew particles pose puzzle
The discovery of two new subatomic particles with unexpectedly low masses is making physicists reconsider how fundamental particles called quarks interact.
By Peter Weiss -
Health & MedicineEating right early might reduce premature births
Malnutrition around the time of conception may promote early delivery of offspring.
By John Travis -
EarthWhen pollutants take the Arctic route
The highest North American concentrations of at least one air pollutant from Asia can be found in Newfoundland, the continent's easternmost region.