Sarah Zhang

Fossils are quite common in this type of stone, but human-looking ones are not.

Finding a matched donor has always been the major challenge. A drug has solved that problem.

The perspective of a child could help AI learn language—and tell us more about how humans manage the same feat.

A new treatment can change a person’s life, but is not officially approved for anyone under 2.

People are discovering the truth about their biological parents with DNA—and learning that incest is far more common than many think.

The disease once guaranteed an early death—but a new treatment has given many patients a chance to live decades longer than expected. What do they do now?

The weight-loss effects of GLP-1 drugs have little to do with the gut.

Existing weight-loss drugs can cause muscle loss, but the next generation could allow patients to gain muscle instead.

Everyone hits a weight-loss plateau, but the race is on for next-generation drugs that can help patients lose even more weight.

No one can know exactly, but archaeologists have found a few unexpected clues.

A re­elected Donald Trump would continue to attack studies that stand in the way of his agenda—and to make support for scientific inquiry a tribal belief.

The much-hyped technology for editing genes has fulfilled one of its biggest promises.

Start with this: You really have two noses.

Half the people in the world harbor this bacterium, but it sickens only a fraction. Why?

The COVID shots—and new ones for RSV—herald a new era for designing vaccines.

Leftover medications are going to save the animals from a deadly feline coronavirus.

Studies prove that popular decongestants just don’t work.

Until the future of the new COVID variant becomes clear, three scenarios are still possible.

New drugs target specific parts of the immune system, with startling results.

Magpies are using anti-bird spikes for their own purposes.

For texturally exciting gummies—powder bursts! ultra-chewy!—you have to look outside the United States.

The reason statins can make your muscles sore or weak was unclear—until scientists accidentally stumbled upon an answer.

Cytomegalovirus, or CMV, is the leading infectious cause of birth defects. Why isn’t it better known?

A family in the Netherlands has a rare and perplexing brain condition that helps explain how we recognize color.

People taking Ozempic for weight loss say they have also stopped drinking, smoking, shopping, and even nail biting.

Over and over again, genetic mutations are preventing a protein once thought to be key to the virus’s success from being expressed.

A lot went wrong with COVID, but the responses that worked could help guide us in future pandemics.

The drug can make food no fun. What happens if you skip a dose?

So soft, so stretchy, so breathable? “Bamboo” is just an old fabric rebranded as something new and magical.

The oceanic soup of plastic fragments is becoming a new kind of ecosystem.

Hormones and pumping are allowing some parents to induce lactation—and rewrite the rules of caring for a baby.

“It felt like being hit by a truck and dragged along behind,” one mother said.

The desire of parents to be truly original has had a perhaps unintended effect.

For $15,000, you can get your pet a new kidney.

New variants are coming. How worried should we be?

Umbilical blood can be a valuable treatment for rare diseases. But that doesn’t mean you need to pay thousands of dollars to bank your baby’s.

Even now, the coronavirus is killing three times as many people as the flu.

There’s no such thing as a dog that can’t cause allergies.

Why do so many kids need glasses now?

For decades, the government has been carrying out an ambitious plan to mass vaccinate the wild animals by airplane.