Elk
Speed: Around 40 MPH
The Elk species can be found throughout most of North America and the Eurasian territory. More often than not, people assume they are only in colder environments. While it is true that they tend to be found a lot in these areas, they are also known to thrive in warmer places too. Of course, the Moose species (very similar to the Elk) tends to thrive more in the cold. While not native to South America, Elk has been introduced in the wild here and they have managed to do quite well. Of course, the species is known for being incredibly large.
Depending on the version of Elk you come across, they could be extremely territorial or docile. Yet most of them are aggressive during the mating season. The males of the species are known for using their large antlers, which they actually shed annually. When they want to attack, they do not mind running after anyone, even humans. They can reach upwards of 40 mph, which also helps them escape potential predators such as cougars, wolves, and coyotes.