Researchers looked back at more than 100 years of research and found that a fascination with annelids with mixed up appendages was strong—and that research still has relevance today. Learn more about your ad choices. Visit megaphone.fm/adchoices

A landmark study of women who were turned away from getting the procedure found that being forced to have a child worsened their health and economic status. Learn more about your ad choices. Visit megaphone.fm/adchoices

Today we bring you a new episode in our podcast series COVID, Quickly. Every two weeks, Scientific American’s senior health editors Tanya Lewis and Josh Fischman catch you up on the essential developments in the pandemic: from vaccines to new variants and everything in between. You can listen to all past episodes here. Learn more about your ad choices. Visit megaphone.fm/adchoices

As the world warms, many animals are getting smaller. For birds, new research shows what they have upstairs may just make a different in how much smaller they get. Learn more about your ad choices. Visit megaphone.fm/adchoices

A research team finds seven tiny dwarf galaxies stripped of their dark matter that nonetheless persisted despite the theft. Learn more about your ad choices. Visit megaphone.fm/adchoices

Today we bring you a new episode in our podcast series COVID, Quickly. Every two weeks, Scientific American’s senior health editors Tanya Lewis and Josh Fischman catch you up on the essential developments in the pandemic: from vaccines to new variants and everything in between. You can listen to all past episodes here. Learn more about your ad choices. Visit megaphone.fm/adchoices

A glitch in speech initiation gives rise to the repetition that characterizes stuttering. Learn more about your ad choices. Visit megaphone.fm/adchoices

In the newest season of Lost Women of Science, we enter a world of secrecy, computers and nuclear weapons—and see how Klára Dán von Neumann was a part of all of it. Learn more about your ad choices. Visit megaphone.fm/adchoices

Think of the process as a kind of marine fecal transplant—except the restorative bacteria do not come from stool; they come from other corals. Learn more about your ad choices. Visit megaphone.fm/adchoices

By dating nearly a quarter-million stars, astronomers were able to reconstruct the history of our galaxy—and they say it has lived an “enormously sheltered life.” Learn more about your ad choices. Visit megaphone.fm/adchoices