What Am I?

Clue 1: I am a type of rainforest animal that has fur.

Clue 2: I sleep in a nest that I build in the treetops.

Clue 3: I am one of the cleverest animals in the world.

Clue 4: I can use a long piece of grass to go fishing for ants in their nests.

Clue 5: I often hug and hold hands like people do.

Clue 6: I look a bit like a monkey but I have no tail.