White-tailed does can see and hear very well, but rely mainly on their sense of smell and their speed. They are very agile and can sprint up to 48 km/h. Their grey-brown winter coat isn'™t just camouflage against predators. Because the hairs are hollow, they also store body heat very efficiently. Fun fact: White-tailed does can jump 3 m high and 9 m long at a time.