Size and Shape:
* Large: They are the largest North American hare, with adults typically measuring 18-27 inches in length and weighing 4-8 pounds.
* Long ears: Their ears are incredibly long, measuring 5-7 inches, and are wider than the head. They are very mobile and help them detect predators.
* Long legs: Their long legs, especially the hind legs, give them powerful leaping abilities.
* Slender body: Their body is slender and streamlined, allowing them to run quickly and efficiently.
Coloration:
* Gray to brown: Their coat is a grayish-brown color, blending well with the landscape.
* Black tail: As their name suggests, they have a distinctive black tail that is very noticeable when they are running.
* White belly: They have a white underside, which can help them camouflage when they are lying down.
Other features:
* Large eyes: Their large eyes are positioned on the sides of their head, providing them with excellent peripheral vision.
* Vibrissae: They have long whiskers (vibrissae) that help them navigate their surroundings.
* No visible tail: The black tail is only visible when they are running or startled.
Overall, a black-tailed jackrabbit is a large, sleek, and powerful creature with long ears, a distinctive black tail, and a camouflage coat.