Katia Riddle is a correspondent on NPR's science desk. Prior to her current role, she covered public health including reproductive rights and homelessness. She won a 2024 Gracie Award for a series on ...

As 2025 comes to a close, here's a look back at the most-read stories of 2025 highlights the headlines that captured the ...

CHICAGO — Dr. Mark Geier has, he says, solved the riddle of autism. He says he has identified its cause and, in the powerful drug Lupron, found an effective treatment — what he calls a "major ...

Zoo-goers can ride camels for a fee at the Reid Park Zoo. Four camels — Luke, Riddle, Mack and Winston — joined the Tucson zoo Nov. 7. Rides began Saturday and since then, the quartet has given more ...