Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. When we launched the ...
HOW do you tell the world what a big, tough competitor you are? If you’re a dwarf mongoose, you do a handstand or a cartwheel to raise your rear as high as possible, then smear your anal scent glands ...