NOAA contracts are being reviewed one by one. It's throwing the agency into chaos NOAA relies on hundreds of contracts to keep the agency running. The new commerce secretary is reviewing many of them individually, causing disruptions to many normal operations within the agency. Alejandra Borunda
Four critically endangered Galápagos tortoises hatch at the Philadelphia Zoo The birth of tortoises native to Santa Cruz Island in the Galápagos increases their U.S. population from 44 to 48. A few thousand remain globally, according to estimates by experts. Ayana Archie
A biotech company says it has bred three pups with traits of the extinct dire wolf Colossal Biosciences says it used novel gene-editing technology to alter gray wolf DNA to breed the animals. Dire wolves recently featured prominently in the HBO series Game of Thrones. Rob Stein
Health secretary RFK Jr. endorses the MMR vaccine — stoking fury among his supporters Prominent anti-vaccine activists lined up on social media to denounce the move. Geoff Brumfiel
The (artificial intelligence) therapist can see you now Many AI products claim to deliver mental health therapy, but with little quality control. But new research suggests with the right training, AI can be effective at helping people. Katia Riddle
RFK Jr. visits epicenter of Texas measles outbreak after death of second child A second school-aged child in West Texas has died from a measles-related illness, a hospital spokesman confirmed Sunday, as the outbreak continues to swell. The Associated Press
The unique genetic change that turned horses into athletic powerhouses A new study suggests genetic changes allow horses to produce more energy, while minimizing the toll the energy takes on cells. Jonathan Lambert
This week in science: running and the brain, fermented space food and bat navigation NPR's Short Wave brings us the stories of how running a marathon could change your brain, fermenting food in space, and the mystery of how bats in flight avoid colliding with each other. Regina G. Barber
What does the shark say? Click, click, click Scientists in New Zealand believe they may have the first-ever recording of a shark making noise. Julie Depenbrock
How do 'torpedo bats' work? We asked baseball physicists to explain They look like baseball bats morphing into bowling pins, their ends flaring into an aggressive bulge that suddenly tapers. So how do they work? Bill Chappell
