The Great Rift: Africa's Wild Heart — S01E03 — Grass

00:00:06 30 million years ago,

00:02:34 So how did this part of Africa change so dramatically?

00:05:25 the mighty Ruwenzori.

00:07:15 ..and its tiny leaves reduce water lost by evaporation.

00:09:18 But adult trees aren't safe, either.

00:11:44 That means big guts, and big guts need a big body.

00:14:59 Job done. The exchange of genes is complete.

00:16:51 but it doesn't hinder her hunting.

00:20:01 These warthog piglets are a perfect size for the cubs to practice killing.

00:23:42 If they stay still they won't be found.

00:27:42 But because grasses store energy underground in their roots,

00:30:31 who graze the savanna in a ten-mile radius around the spring.

00:35:16 GRUNTING

00:38:26 The cheetah is faster,

00:41:44 Regular grooming is not just for reasons of hygiene.

00:44:16 Baboon behavior can give an insight

00:47:01 and our societies grew ever more complex and powerful.

00:48:52 When darkness falls,

00:50:08 but it is probably the first time ever

00:51:33 I don't know, well, it's going to cause mayhem with the chimps.

00:53:00 hoping for a more successful climb.

00:54:47 We're about 15 meters off the deck

00:55:59 try and climb up into it.

00:58:09 E-mail [email protected]