Take a Number: More Grandparents Than Ever
Since 2001 the number of grandparents has grown by 24 percent, partly as a result of the aging of the baby boom generation.
The Death and Rebirth of the Duncan Grapefruit
Once a breakfast staple, this white, seed-packed variety of the fruit has all but disappeared. Yet there are hints of a small-scale revival.
We Might Soon Resurrect Extinct Species. Is It Worth the Cost?
Scientists disagree about whether bringing extinct species back from the dead will result in a net loss of global biodiversity.
Trilobites: Bluebonnet Season Came Early in Texas This Spring
Flowering plants that are blue are rare in nature. But Texas bluebonnets put on an annual show in pastures, parks and highway medians.
Q&A: Animals in Extra Large
In general, the large size of some prehistoric animals in comparison to their modern counterparts had to do with evolutionary opportunity.
U.S. Nuclear Weapons Tests Come to YouTube
Films of the tests conducted in Nevada and the Marshall Islands from 1945 to 1962 are being restored and released to the public.
Watch U.S. Nuclear Tests
Thousands of films showing U.S. atmospheric nuclear tests between 1945 and 1962 have been declassified. Scientists are studying them and posting...
Burrowing Under Luminous Ice to Retrieve Mussels
When the winter tide goes out on a northern Canadian bay, some Inuit clamber into the ice caves below to harvest fresh food.
Cholesterol-Slashing Drug Can Protect High-Risk Heart Patients, Study Finds
Patients who took the drug, Repatha, were significantly less likely to have heart attacks or strokes, researchers concluded. But its high cost will...
Modern Love: Pushed Into the Future When Illness Strikes (in an Unlikely Place)
After contracting a rare case of the mumps as an adult, a man receives bad news about his fertility.
With E.P.A. Cuts, States Would Lose Help in Emergencies
Much of the agency’s state-level work would be eliminated or sharply reduced by President Trump’s proposed budget, which cuts the E.P.A. more than...
Scientists Bristle at Trump Budget’s Cuts to Research
Scientists expressed alarm at the depth of proposed cuts to climate change, medical and energy programs, saying they threaten the nation’s research...