This is 'Spot.' And it is the smaller version of Boston Dynamic's Big Dog. It's also got really really good balance as you can see from below how it recovers almost immediately after being kicked. (Note: don't kick animals. It's wrong and you're an idiot if you do so.)

Check it out:

Spot weighs 160 pounds and can safely operate both indoors and out.

Spot has built-in sensors that keeps a series of hydraulic actuators moving and can navigate through difficult terrain.