Our newest human relative, busting human sniff myths, and the greenhouse gas that could slow global warming

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This week we have stories on ancient hominids that may have coexisted with early modern humans, methane seeps in the Arctic that could slow global warming, and understanding color without words with Online News Intern Lindzi Wessel.

John McGann joins Sarah Crespi to discuss long-standing myths about our ability to smell. It turns out people are probably a lot better at detecting odors than scientists thought!

Listen to previous podcasts.

[Image: Streluk/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