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Sex-changing mouse clones may help fight to save endangered species

For the first time, scientists managed to turn cloned male mouse embryos into females, giving life to healthy and fertile individuals

Scientists worry AI is stealing their ideas

Researchers are using AI as a sounding board throughout their work. But concerns are growing that companies may present users' ideas as those of their models

There’s Worlds Out There More Habitable Than Earth

NATALIE WOLCHOVER

Scientists believe there are planets outside our solar system where life is even more abundant and sustainable.

What happens to the body during menopause? New research hints at a biological ‘cliff’

Certain health markers seem to "jump" during menopause, according to a new study, but it's unclear why

What Can Four-Winged Dinosaurs Teach Us About Birds?

JACK TAMISIEA

Flight was probably more widespread in dinosaurs than previously thought. A newly identified species sheds light on how some achieved liftoff.

Will We Ever Understand Dementia?

ROBERT KOLKER

Since the days of Dr. Alzheimer himself, there has been a dream that severe senility might have an explanation — and a cure. The search for both has never been more urgent.

The mathematical secret behind why rose petals curl

The elegant curl of rose petals may be distinct among flowers—and math can explain why

OpenAI’s blockbuster Navier-Stokes proof isn’t what we thought it was

Rumors that OpenAI's "Navier-Stokes" solution stole the work of two mathematicians may have been overblown

How a Logging Industry Downturn Fuels Wildfires

SCOTT DANCE

Loggers are finding it impossible to profitably harvest some federal forests. That leaves more fuel for fires to accumulate.

Hurricane Isaias shows ‘it only takes one’ to wreak havoc after historically calm Atlantic hurricane season

The Category 2 storm spawned tornadoes, flooding and extreme rain when it made landfall

Latest Trump administration proposal to change NIH research grant system draws scientists’ ire

One researcher tells Scientific American that the change would reduce transparency and risk politicizing the grant review process

Claude just found a CRISPR-like DNA pattern, but even Anthropic's scientists aren't sure what it does

The large language model took less than a day to identify the curious stretch of DNA

Are Blue Zones real? One researcher finds the data deeply flawed

The data behind Blue Zones might not be that strong

Amateur astronomer harnesses AI to find a possible hidden exoplanet

Evidence for the possible super-Earth has been lurking for years in NASA data. Pavel Rabtsevich found it—with a little help from AI