Tag Archives: Research

An influential doctor and advocate of adolescent gender treatments said she had not published a long-awaited study of puberty-blocking drugs because of the charged American political environment. The doctor, Johanna Olson-Kennedy, began the study in 2015 as part of a broader, multimillion-dollar federal project on transgender youth. She and colleagues …

A dog-size reptile slipped through fern-choked forests 237 million years ago in what is today Paraíso do Sul, Brazil. The animal had the body of a greyhound, a long neck and tail, and a small, nipping beak. Running on four, upright legs, the reptile looked remarkably like an early dinosaur. …

Sammy Basso, an advocate for research into progeria, an ultrarare fatal disease that causes rapid aging in children, who was known for living with gusto and humor with the condition as he faced the certainty of premature death, died on Oct. 5 near his home in Tezze sul Brenta, in …

They’re the original odd couple: One is massive, spherical and unmoving. The other is tiny, has a tail and never stops swimming. Yet the union of egg and sperm is critical for every sexually reproducing animal on Earth. Exactly how that union occurs has long been a mystery to scientists. …

As soon as you put starch in your mouth — whether in the form of a dumpling, a forkful of mashed potatoes or a saltine — you start breaking it down with an enzyme in your saliva. That enzyme, known as amylase, was critically important for the evolution of our …

The ocean is filled with microscopic creatures that thrive in the sunshine. These bacteria and plankton periodically clump up with detritus, like waste produced by fish, and then drift softly downward, transforming into what scientists call marine snow. In the inky depths of the ocean that the sun can’t reach, …

Forests not only serve as refuges from city life, but could also be among the last fortresses between a livable planet and an increasingly hostile one. Forests can pull carbon from the air and store it in roots and leaves, locking it out of the atmosphere. Through complex markets, nations …

The chief of a cancer surgery division at Columbia University this week had five research articles retracted and a sixth tagged with an editor’s note, underscoring concerns about research misconduct that have lately bedeviled Columbia as well as cancer labs at several other elite American universities. With the latest retractions, …

North-facing, sloping ground with loose, sandy soil — if you’re a bumblebee queen on the market for a winter home, these features will have you racing to make an offer. But scientists were recently stunned to find there’s something else these monarchs like in a place to hibernate: pesticides. In …

Scientists have found plastic pollution almost everywhere they have looked. In clouds. On Mount Everest. In Arctic snow. Now, for the first time, tiny plastic particles have been detected in the breath of dolphins. The findings, published on Wednesday in the peer-reviewed journal PLOS One, point to the ubiquitousness of …