A naked mole rat on display in the Small Mammal House at the Smithsonian's National Zoo and Conservation Biology Institute. Roshan Patel, Smithsonian's National Zoo hide caption
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Wednesday
Tuesday
Scientists have found that artificial light can interfere with many insects' ability to position themselves relative to the sky. Scott Linstead / Science Source hide caption
'Like moths to a flame'? Here's what's going on with insects and porch lights
Patients report that ketamine infusions can be lifesaving, with immediate improvement for severe depression. But dosage and safety measures vary widely at the hundreds of clinics that have opened. Yana Iskayeva/Getty Images hide caption
Monday
A manatee swims among seagrass in the Homosassa River on Oct. 5, 2021 in Homosassa, Fla. Joe Raedle/Getty Images hide caption
Scientists can tell how fast you're aging. Now, the trick is to slow it down
Sunday
In January 1964, American student Randy Gardner sits on a bed next to various household objects he will later have to identify by memory as part of a sleep deprivation experiment in San Diego, Calif. Gardner set the world record during the experiment, staying awake for over 264 hours. Don Cravens/Getty Images hide caption
Lessons from sleeplessness: The 60th anniversary of Randy Gardner's world record
Friday
Hotter than normal temperatures are exacerbating the megadrought that's depleted Western water reserves, like Elephant Butte Reservoir in southern New Mexico, new research finds. Mario Tama/Getty Images hide caption
That giant extinct shark, Megalodon? Maybe it wasn't so mega
An invasion of big-headed ants has changed the landscape at the Ol Pejeta Conservancy in Laikipia, Kenya. Elephants wander a landscape that has fewer trees and more open grasslands. Brandon Hays hide caption
When tiny, invasive ants go marching in ... and alter an ecosystem
Thursday
The Centers for Disease Control and Prevention estimates that up to 86% of new COVID-19 cases stem from the latest mutation, JN.1. The most recent COVID vaccines are expected to help lower chances of serious illness or hospitalization from JN.1. Rogelio V. Solis/AP hide caption
During the winter months, American alligators go into a state of brumation, the cold-blooded version of hibernation. David Arbour/Oklahoma Department of Wildlife Conservation. hide caption
Wednesday
Arno Penzias (right) and Robert Woodrow Wilson, who co-discovered the afterglow of the Big Bang. The Bell Lab employees, who won the 1978 Nobel Prize in physics for their discovery, are shown standing in front of their microwave antenna at Bell Labs in Holmdel, N.J., on Oct. 17, 1978. AP hide caption
The dodecahedron was found fully intact and in excellent condition. Norton Disney History and Archaeology Group hide caption