Fully vaccinated people got the green light last week to resume much of their lives without masks. Behavioral experts say that as an incentive to get more people vaccinated, it's far from a sure bet.
A fungus called Massospora produces an amphetamine in some cicadas and makes them lose control. Cicadas that are infected lose their genitals — and they don't even notice.
The U.S. Preventive Services Task Force says the age that routine screening begins for colorectal cancer should drop from 50 to 45. Colorectal is the third-leading cause of cancer deaths in the U.S.
Scientists have long thought some of the carnage from the 2012 hurricane might be attributable to a warming climate. New research calculates the additional flooding due to rising sea levels.
"This gap between rhetoric and action needs to close if we are to have a fighting chance" of reaching emissions goals, the head of the International Energy Agency says.
The author of best-seller The Fault In Our Stars uses humor, wisdom and a keen sense of connections to offer guidance — as he reviews how humans are reshaping Earth.
Researchers say the herd immunity threshold isn't the right finish line to end the pandemic. Instead, the public should just focus on getting as many people vaccinated as possible.