A Squirrel's Guide to Success

00:00:08 NARRATOR: Squirrels.

00:03:15 But in several countries, their numbers have plummeted,

00:05:11 but they're already beginning to bond.

00:07:53 But burrows are no barrier to their greatest enemy...

00:10:35 Billy's just opened his eyes just last night,

00:12:27 Here at the University of California at Berkeley,

00:14:17 so they make a very good decision

00:17:03 An unusually flexible ankle joint allows the foot

00:18:47 the squirrels would have siblings

00:21:16 So, as one of the larger squirrels,

00:22:59 McALLISTER: Once he starts eating the nuts in the shell

00:25:42 it's slept through the lean months of winter altogether.

00:29:39 at the University of California at Berkeley.

00:31:28 by a weevil or other insect,

00:33:02 NARRATOR: It's even possible that some of the nuts

00:34:51 is a much more complicated environment,

00:36:44 and he's found a unique way to demonstrate

00:39:05 they've combined their grip,

00:40:59 McALLISTER: We can see Billy's quite happy,

00:42:52 We've hand raised it from a baby and got it trained it jump

00:44:28 BYRNES: Then, when they land, they can land with a force

00:47:16 A piece of cartilage on the end of each "wing"

00:50:07 while feeling safe and hidden inside.

00:52:00 on the planet.