Can I pet that dog?⁣ ⁣ No. Bison calves tend to be born from late March through May and are orange-red in color, earning them the nickname "red dogs." After a few months, their hair starts to change to dark brown and their characteristic shoulder hump and horns begin to grow. Like all wild animals, bison can be dangerous and unpredictable. They are capable of charging and bringing pain who approach too closely. An indicator that a bison may be about to charge is the position of its tail: if it's standing straight up, it's a serious watch-out situation. As with all wildlife, it's important to observe them from a distance.⁣ And don’t pet that dog. ⁣ Image: An adult bison surrounded by three calves “red dogs” standing in the grass at @yellowstonenps. NPS⁣ ⁣ #bison #yellowstone #nature #reddog #canipetthatdog