NARRATOR: Borneo's jungles flood every year in the rainy season,
so being able to navigate over water is a crucial skill.
[MUSIC PLAYING]
Orangutans aren't built to swim, as their dense bodies
sink rather than float.
[MUSIC PLAYING]
But crossing a rope bridge is a walk in the park
with these arboreal apes.
[MUSIC PLAYING]
Even Kesi with her missing hand isn't
fazed by the obstacle course.
[MUSIC PLAYING]
She's become much braver since her arrival to Bangamat Island,
but she still prefers eating alone.
[ORANGUTAN GRUNTS]
She can't sit-in her usual spot under the platform here,
so she improvises.
[WATER SPLASHES]
As she munches away on her favorite turnips,
something catches her attention.
[MUSIC PLAYING]
She moves in for a closer look.
[MUSIC PLAYING]
There are no ropes to get her there.
[MUSIC PLAYING, WATER SPLASHING]
At first, she walks on submerged trees
to keep her head above water.
[MUSIC PLAYING, WATER SPLASHING]
But then she actually swims.
[MUSIC PLAYING]
This is very unusual.
[MUSIC PLAYING, WATER SPLASHING]
But orangutans who grow up in rehab
appear to be more curious than those in the wild.
[MUSIC PLAYING, LEAVES RUSTLING]
Kesi's motivation for this risky choice is, of course, food.
[MUSIC PLAYING]
What she spied were termites.