Robotics company Boston Dynamics has released a video of a four-legged device called the WildCat. The robot represents the next generation of the company's Cheetah, which, at speeds of 29 mph, is the fastest robot animal in the world, according to Popular Mechanics.

Capable of reaching 16 mph, WildCat is being developed to run quickly on all types of terrain, according to its developers.

The video, posted on YouTube, represents the robot's most successful test so far.

In it, WildCat slowly rises from a crouched position, bouncing back and forth between its hind and forelegs before it takes off, slowly gaining speed.

Besides galloping, the robot uses a bounding gait to get around and is able to turn.

The machine is loud, however, giving off a noise similar to a chainsaw.

According to Discovery, Boston Dynamics is developing the robot along with the Defense Advanced Research Projects Agency with the goal of one day having packs supplement vehicles over rough terrain or serve as a type of unmanned drone.

Other robots by Boston Dynamics include RHex, a six-legged robot able to function equally as well on its back as its stomach, and Atlas, a humanoid machine capable of lifting objects, climbing and picking its way through crowded areas.

PETMAN, as its name suggests, is another anthropomorphic robot, in this case designed to test chemical protection clothing.

"Unlike previous suit testers that had a limited repertoire of motion and had to be supported mechanically, PETMAN balances itself and moves freely; walking, bending and doing a variety of suit-stressing calisthenics during exposure to chemical warfare agents," the website explains. "PETMAN also simulates human physiology within the protective suit by controlling temperature, humidity and sweating, all to provide realistic test conditions."