Whistling is a skill used to communicate over distances—a whistle can mean anything from “you’re cute” to “time to come home for dinner.” There’s a complex series of mechanisms in the mouth that need ...

From first aid kits and fire starters to a thermal blanket and compass, there are lots of essential supplies that could save your life while camping. One important addition to your emergency supply ...

It’s small, inexpensive, doesn’t require batteries or charging, and it could save your life. “In an emergency, a whistle can help rescuers locate you when you can’t call for help,” says Conne Burnham, ...