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Weight loss drugs don't work for everyone—here’s why

Some people who take GLP-1 drugs such as semaglutide and tirzepatide see little to no changes to their weight. The reason why may be genetics

Fundamental principles of the universe called into question by two physicists

A new study claims that the universe isn't entirely the same no matter where you look—a radical proposal

How quantum sensing could reveal hidden faults in thousands of U.S. bridges

Of the more than 624,000 highway bridges in the U.S., an estimated 220,000 need repairs. Quantum sensors could help engineers better safeguard these vital pieces of infrastructure

Trump Administration Forms Partnership to Bank DNA From Imperiled Species

CARL ZIMMER AND CATRIN EINHORN

The government is teaming up with Colossal Biosciences, a private company that claims to have revived extinct dire wolves, to store samples from at-risk animals and plants.

These Birds’ Backflips Are Fueled by Sugar

K. R. CALLAWAY

An ancient dietary change made the manakin’s flashy courtship display possible, a new study suggests.

France just hit its hottest day ever recorded

Scorching temperatures across France rose to a record-breaking average 30 degrees on Wednesday

Chemours to Pay $450M in First Federal PFAS Settlement

HIROKO TABUCHI

The settlement addresses the dumping of PFAS “forever chemicals,” which have been linked to cancer and other risks, by Chemours in several states.

Medical Journal Retracts Study Claiming Cancer Therapy Is More Effective When Given in the Morning

REBECCA ROBBINS

In a notice flagging a series of problems with a clinical trial, the journal Nature Medicine said its editors “no longer have confidence in the integrity of the results.”

Climate Change Fueling Europe’s Ferocious Heat Wave, Scientists Find

RAYMOND ZHONG

A scientific analysis concluded that such high temperatures, across so much of the continent, would “not have been possible” without global warming.