1. Their body is covered with a thick and wooly coat. Their coat is usually light brown or reddish brown in color. Their coat color provides camouflage against predators, since it matches the color of their environment.

2. Guanacos are medium sized animals. They can reach a height of 3.5 to 4 feet and they can weigh up to 300 pounds.

3. They have large heads with pointed ears, long necks, long legs and short tails. The position of their tail, whether it’s pointing up or down, lets the other members of the group know about upcoming danger. It’s also used as a sign of aggression during fights.

4. They’re herbivores, which means that their diet consists of plants.

5. Since they live in windy environments, they have thick eyelashes that protect their eyes from dust and dirt. They also have padded feet that allow for easy movement across gravel.

6. They’re fast animals and can reach reach speeds of up to 35 miles per hour when they run. They’re also pretty good swimmers, which is essential for their survival as some of their predators can’t swim.

7. Similar to llamas, guanacos are know to spit. They will usually spit at someone if they are irritated or annoyed with them.

8. They have 4 times more red blood cells than humans because they live in high altitudes with low levels of oxygen in the air.

9. They communicate using different sounds. They’re known to make high pitched sounds, snorts and shrieks when they’re warning other members of their group about potential danger. They also use feces for marking their territory.

10. Guanacos form family groups that are usually composed of 10 animals, including one dominant male, a few females and their offspring. Young males are known to live in large bachelor herds of up to 50 members.