It's the little things that count in this whimsical romp in Yosemite National Park.A bear and a chickaree help the youngest visitors notice tiny natural treasures in the big park, like a small Sierra Nevada yellow-legged frog, a petite alpine shooting star, a surprisingly teensy giant sequoia cone, and more. And at the end of the day it's best to leave only little footprints on beautiful Yosemite.