Before revision:  At test time, we study the performance of our learned policy on two new legged robots  (Laikago, 4-legged Daisy) and show that our learned policy can sample-efficiently generalize to previously unseen  robots.
After revision:  At test time, we study the performance of our learned policy on two new legged robots (Laikago, 4-legged Daisy) and show that our learned policy can sample-efficiently generalize to previously unseen robots, and enable sim-to-real transfer of navigation policies for legged robots.