Les orangs-outans de Bornéo, fiers maîtres des cimes de la canopée

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Transcript

00:00 The real herds of this equatorial ecosystem are 60 metres high.

00:06 The giant dipterocarpus.

00:12 The forests of Borneo and Sumatra are dominated by these trees.

00:22 There are more than 270 different species, just in Borneo.

00:29 Strangely, it is on these two islands that we find the most dipterocarpus than anywhere else on the planet,

00:35 including in the humid tropical forests of Africa and America.

00:40 Without having any certainty, scientists think that the isolation of this region for several million years

00:49 has allowed the dipterocarpus to dominate the canopy, as it could not have done in other parts of the world.

00:56 The orang-outans rely on the solidity of these trees to sleep in their branches.

01:01 But they are able to use other species, smaller and more flexible, to move through the forest,

01:09 by making their branches bend.

01:13 They have learned to adapt to the changes of the climate.

01:21 They have learned to select the right trees,

01:25 because any mistake could result in serious injuries or even death.

01:31 Females are all the more careful that they carry precious passengers.

01:37 50 metres above a bed of rocky rivers, an orang-outan female has just discovered a delicious bait.

01:49 Orang-outans are robust and careful climbers.

01:53 They keep three points of contact at all times, two feet and one hand.

02:00 If she falls, it is that the branch will have let go.

02:05 Translation by Jean Laflute

02:07 If she falls, it is that the branch will have let go.

02:11 For more information, visit www.nasa.gov/gravity

02:15 (whooshing)