Podcast: Bumble bee emotions, the purpose of yawning, and new insights into the developing infant brain

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This week, we chat about some of our favorite stories—including making bees optimistic, comparing yawns across species, and “mind reading” in nonhuman apes—with Science’s Online News Editor David Grimm. Plus, Science’s Alexa Billow talks to Mercedes Paredes about her research on the developing infant brain. Listen to previous podcasts [Image: mdmiller/iStockphoto; Music: Jeffrey Cook]

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Studying the changing of AI language inside swarms, how orangutans learn to forage, and an astrophysicist talks about loss

Can ‘assisted migration’ save forests? And the role of philosophy in science

Psychoactive substances helped spur Andean civilization, and breaking barriers to education

Sex-reversing frogs, and Europe’s rising rates of a deadly tick-borne disease

Making drugs in space, the man who fed India, and what narwhals can teach us about changing seas

Why tracing cyclosporiasis is so tough, and a digestible probe for the microbiome

A vest for blocking cosmic rays, and updates on NIH funding

Did meat or fruit give people big brains, and protecting bison diversity using ancient DNA

AI’s influence on society, measuring muscles, and a Crick biography

Death in a gene-editing trial, and insect larvae surviving in deep waters