Episode Details

For the first time ever, researchers have identified the exact brain cell types that behave differently in people with depression, moving science beyond the vague 'chemical imbalance' theory toward precise biological targets for treatment. Deep beneath our feet, a global seismic survey has confirmed the ghostly presence of ancient tectonic plates buried in Earth's mantle for hundreds of millions of years, still shaping how our planet moves. In the fossil record, a poodle-sized crocodile relative has stunned paleontologists by appearing to switch from four-legged to two-legged walking as it grew — a developmental shift almost unheard of in known prehistory. A 289-million-year-old mummified reptile is revealing the earliest known origins of rib-powered breathing, the same fundamental mechanism used by reptiles, birds, and mammals today. And new research from UC Irvine suggests a specific combination of fatty acids may be able to restore vision and reverse retinal aging in mice, pointing toward a potential new approach to age-related vision loss.

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