Red squirrels are native to the U.K. and have been ... We can use technology to create measures of biodiversity based on sound. Basically, we filter out all the noise made by humans, then what ...

An elementary school in Colorado went into lockdown Tuesday after loud noises—believed to come from gunfire—were reported, but further investigation revealed a squirrel as the culprit.

Just before 1 p.m., the Boulder County Sheriff's Office said an employee from Xcel alerted them to let them know a squirrel had likely tripped an electrical fuse which caused the loud noises.