Christopher Intagliata

Scientists once thought no mammals could survive at this altitude. But a tiny mouse living almost 22,000 feet up in the Andes is proving them wrong and offering clues about life in extreme conditions.

NPR's Ailsa Chang talks about imagination, boredom and the fear-of-missing-out with Oliver Jeffers, author of the new children's book A Day Off School , with illustrator Kevin Waldron.

Transcript AILSA CHANG, HOST: If you've ever taken a day off school as a kid because you were sick, you may remember how it usually goes.

Scientists once thought no mammals could survive at this altitude. But a tiny mouse living almost 22,000 feet up in the Andes is proving them wrong and offering clues about life in extreme conditions.

NPR's Ailsa Chang talks with Israel's U.N. ambassador, Danny Danon, about a proposed U.S.-Saudi civilian nuclear deal, the Iran war and Israel's evolving relationship with the U.S.

NPR's Ailsa Chang talks with Israel's U.N. ambassador, Danny Danon, about a proposed U.S.-Saudi civilian nuclear deal, the Iran war and Israel's evolving relationship with the U.S.

Most commercially available avocados are genetically identical, leaving them vulnerable to disease. Kevin Wann/Smithsonian Museum of Natural History hide caption

NPR's Debbie Elliott speaks with Carl Skau, acting executive director of the U.N. World Food Programme, about a new report on food security in Gaza.

A crew inside NASA's Human Exploration Research Analog looks up from the habitat's ladder well for a team photo. NASA hide caption

Transcript ANNOUNCER: You're listening to Short Wave from NPR. REGINA BARBER: Hey, Short Wavers. Regina Barber here.