Do birds enjoy flying? Scientists asked cockatoos - Scientific American

Two birds in Brazil are, scientifically speaking, loud as heck, So loud that these relatively small birds rival the earsplitting obnoxiousness of machinery like jackhammers and chainsaws. They’re even louder than much larger animals, like elephants. According to a study published in Evolution, researchers from the University of Massachusetts Amherst hiked into the Brazilian wilderness armed with laser rangefinders and portable sound level meters to measure the song volume of 123 different species. While hummingbirds let out a gentle 50 to 64 decibels, about on par with a normal conversation, the bare-throated bellbird and the red-legged seriema seemed to be trying to tear a hole in the universe with their birdsong.

Lawrence Livermore National Laboratory researcher Isaiah Santistevan led the development of three-dimensional simulations exploring how a nuclear device could deflect or disrupt an asteroid threatening Earth. Credit: Blaise Douros/LLNL Lawrence Livermore National Laboratory (LLNL) researchers are developing three-dimensional simulations to examine how a nuclear device could be used to deflect or potentially disrupt an asteroid threatening Earth.