Darwin probably didn’t expect basic principles of evolution to apply to machines, but here we are: Researchers have created a “mom” robot that independently reproduces “children,” passing beneficial features along to the next generation.
Owls are often considered nature’s stealth fighters, and it turns out their ability to silently is a result of a unique wing structure not found in any other bird. Now that researchers know the owl’s secret, they can make lots of stuff silent—everything from bedroom ceiling fans to massive wind turbines.
Good news! Another study suggests chocolate may be good for you. And the more you eat, the better off you are.