PAL
2005.10
Today a pile of sawdust is scattered on the ground.
PAL is sitting on the center of the pile.
In COO's case,
she comes down to the ground,
picks up a chip.....
.....then eats it.
At that time PAL dives into the sawdust.
She rolls on it until being covered from head to foot.
And she wrestles with AYUMU.
In AYUMU's case,
he gathers sawdust and
throws to other chimp.
but she rather to cover herself.