animals Researchers in Perth, Australia believe these are the first recorded echidna vocalizations. Spoiler alert: they sound like a cross between a pigeon cooing and a tiny horse neighing Jennifer Sandlin
unsolved mysteries American Airlines' in-flight announcements include mysterious "grunting, moaning, and groaning" Mark Frauenfelder
security Independent evaluation of "aggression detection" microphones used in schools and hospitals finds them to be worse than useless Cory Doctorow
music New anthology of Michele Mercure's 80s synth music from the cassette underground David Pescovitz