Boston Dynamics, the company behind mind-blowing robots like BigDog and Atlas, this week showed off its latest creation — Wild Cat.

The four-legged robot, which made its debut Thursday on YouTube, is being developed to run on all different types of terrain without being tethered to a power source like its predecessor, Cheetah. The video (below) shows the large feline-like robot powering up, then lifting itself off the ground onto its four legs. It then backs up before showing off its skills galloping, bounding, and even turning.

"So far WildCat has run at about 16 mph on flat terrain using bounding and galloping gaits," according to the description. "The video shows WildCat's best performance so far."

Because WildCat is the next generation of Boston Dynamics' previous Cheetah robot, there's reason to believe it is capable of going even faster than 16mph. First unveiled last year, Cheetah is the fastest legged robot in the world, able to run 29 mph, which is just a bit faster than Olympic champion Usain Bolt.

The catch with Cheetah is that it only ran on a high-speed treadmill in a laboratory, tethered to the offboard hydraulic pumps it relied on for power. WildCat, on the other hand, operates untethered.

Boston Dynamics is developing WildCat with funding from DARPA's Maximum Mobility and Manipulation program. After initial testing, the robot is now in the outdoor field testing phase.

Some YouTube users pointed out that while impressive, WildCat is quite loud. "Now I know who stole my weed whacker motor," one user quipped.

WildCat's unveiling comes after Boston Dynamics this summer showed off Atlas, a 6'2", 330-pound humanoid robot. Atlas features two fully working hands with four fingers, including opposable thumbs, 28 hydraulically actuated joints, a "head" with LIDAR and stereo sensors, automatic crash protection, and an on-board, real-time control computer.