Science

Millions of years ago, this desert in Peru was a gathering place for fantastical sea creatures: whales that walked, dolphins with walrus faces, sharks with teeth as large as a human face,...

The NumbersThe research examined the age-verification policies and other practices of 80 online dispensaries, based in 32 states, that sell marijuana to American customers.The study found that 18.8 percent of dispensaries, or...

The pangolin is an absurd animal, a mammal that’s dressed up as a reptile with a coat of scales, sharp claws and sticky saliva. Wildlife experts often say they are the most...

It’s been about 250 million years since reptile-like animals evolved into mammals. Now a team of scientists is predicting that mammals may have only another 250 million years left.The researchers built a...

In 1842, a vast, nearly intact skeleton was unearthed on a plantation in Alabama; it was soon identified as a member of Basilosaurus, a recently named genus of prehistoric sea serpent. But...

On Sunday morning, a brown-and-white capsule will shoot through Earth’s atmosphere to drop off a cache of pristine space rock to a team of eagerly waiting scientists and engineers.If successful, the sample...

Liv Grace came down with respiratory infections three times over the course of four months. Each occurred after a visit to a medical provider in the Bay Area.Mx. Grace, 36, a writer...

Espen Finstad was trudging through mud in the Jotunheimen mountains of eastern Norway this month when he happened upon a wooden arrow, bound with a pointed tip made of quartzite. Complete with...

As the sun rose on Friday over the lunar plateau where India’s Vikram lander and Pragyan rover sit, the robotic explorers remained silent.The Indian Space Research Organization, India’s equivalent of NASA, said...

In the dappled sunlit waters of Caribbean mangrove forests, tiny box jellyfish bob in and out of the shade. Box jellies are distinguished from true jellyfish in part by their complex visual...