White-tailed deers are beautiful animals that mostly live in both the Nearctic and Neotropical regions. They inhabit most of Southern Canada and all of the mainland United States missing only west central states to the California coast. White-tailed deer might have different coloring depending on the season of the year and their location, for example, they might have grayish fur in winter, but reddish-brown in summer. Their main distinguishable feature is a tail that is brownish-red above and has white color below. White-tailed deers are extremely agile and may reach speeds of up to 30 miles per hour. An animal progress bar for YouTube with Running Deer.