The Making of Walking with Dinosaurs

00:00:36 'If a film crew ventured back 65 million years

00:03:33 'trying to reveal the behaviour behind the bones.

00:05:30 We now know that horn is a thumb spike

00:07:19 A rough surface with lots of openings for blood vessels.

00:09:42 This sequoia cone, for instance

00:11:40 There's a low, scrubby southern beech -

00:13:21 You have a look, sniff the air a bit

00:16:03 The skeleton is exceedingly lightly constructed.

00:17:36 'but it would soon get the hang of it.

00:19:27 I'm surprised how little lateral movement there is

00:21:10 It does not look real.

00:23:08 changed into a dynamic animal, moving.

00:25:10 onto the Chile background

00:27:59 It's not designed for rearing up

00:29:41 'Palaeontologist Karen Chin knows what she's looking for.'

00:31:22 'the series made its own.

00:33:09 Long legs let them leap onto their back

00:34:57 like your dentist uses to cast your teeth.

00:36:55 This is the brain case from a T-Rex found 25 miles north of here

00:39:04 besides how this one walked.

00:41:04 'who sport huge crests.

00:42:44 T-Rexes mating.

00:44:23 (Rumbling groan )

00:46:17 0K, standing by for birthing sequence.