Science Friday is your trusted source for news and entertaining stories about science. It's brain fun for curious people airing Friday's at 3 on GPB.
From egg-laying to mammal-like placentas, there’s huge variety in how sharks and rays make babies. Here’s why one strategy — multiple dads per litter — might need a new explanation.
Scientists film a fish killing and eating a seaside sparrow’s hatchlings, an example of how climate change is upending ecosystems.