You better belive it! We come across them in Wyoming while riding on the trails or backpacking. Usually a cow and calf, WOW you better give her a wide berth and dont take your eyes off of her, they cant see very well but they can hear where your at. She would love nothing better than turn you into RED DIRT!
We were hiking a trail up in the Shoshone forest several years ago, came to a small bog ajacent to the trail and there was a cow moose with a calf, she heard us and pushed the calf behind her. We watched them for a while, she finally pushed the calf into the trees and we got the heck outa there.