• Hummingbirds Can See Colors We Can’t Even Imagine

    The phrase “every color of the rainbow” isn’t quite as all-encompassing as it sounds. For one thing, the color chips in your hardware store’s paint aisle host some colors you’ll be hard-pressed to point to in a real rainbow. But even on a less hair-splitting level, purple is missing from that rainbow.

    ARS TECHNICA

    This story originally appeared on Ars Technica, a trusted source for technology news, tech policy analysis, reviews, and more. Ars is owned by WIRED’s parent company, Condé Nast.

    The V in ROYGBIV stands for violet, sure, but that’s not actually the same thing as purple. There is no purple wavelength of light—it requires a mixture of both red and blue wavelengths. That makes it a “nonspectral color”—in fact, it’s the only nonspectral color humans see. It requires our brains to interpret signals from both red-sensitive and blue-sensitive cones in our eyes and to see that

  • Ever heard a fox laugh? This video will make your day.

    Do animals laugh?

    If you’ve ever wondered about this, there’s now video evidence of one species that does. Foxes!

    Twitter user mollyfprince recently uploaded a video depicting just that.

    In the 53 second viral video, which has since been retweeted close to 160,000 times, the foxes can be seen laughing when a hand, believed to be the Twitter user’s, can be seen tickling the underbelly of the foxes.

    The result? Laughter that has an uncanny resemblance to humans.

    Turns out, foxes are able to laugh as a result of being domesticated by humans for more than six decades.

    The phenomenon, first observed by Russian researchers on silver foxes, appears to have spread to other fox species too.

    Here’s a video of a laughing silver fox.

    And here’s another of an arctic white fox.

  • LinkedIn says it will stop repeatedly copying iOS clipboard

    LinkedIn plans to stop its app from repeatedly copying the contents of an iOS device’s clipboard, after a user highlighted the seemingly privacy-invasive practice earlier this week. ZDNet reports that LinkedIn called the behavior a bug.

    The app copies clipboard contents in order to perform an “equality check” between what a user is typing and what’s in their clipboard, according to LinkedIn engineering VP Erran Berger. Berger did not say why this check was necessary. “We don’t store or transmit the clipboard contents,” Berger wrote on Twitter.

    The behavior was discovered thanks to a new privacy feature in iOS 14, which is currently in a limited beta for developers. The operating system now notifies users when an app copies something from another app or device. This has led to people spotting questionable behavior from apps that appear to copy clipboard contents with every keystroke.

    LinkedIn was called out