How are these monkeys feeling?

Monkey 1
Friendly
Neutral
Distressed
Aggressive

Photo: Julia Fischer

Monkey 2
Friendly
Neutral
Distressed
Aggressive

Photo: Brian J. Gomila

Monkey 3
Friendly
Neutral
Distressed
Aggressive

Photo: Julia Fischer

Monkey 4.
Friendly
Neutral
Distressed
Aggressive

Photo: Brian J. Gomila

Monkey 5.
Friendly
Neutral
Distressed
Aggressive

Photo: Laetitia Marechal

Monkey 6.
Friendly
Neutral
Distressed
Aggressive

Photo: Julia Fischer

Monkey 7.
Friendly
Neutral
Distressed
Aggressive

Photo: Laetitia Marechal

Monkey 8.
Friendly
Neutral
Distressed
Aggressive

Photo: Brian J Gomila

Monkey 9.
Friendly
Neutral
Distressed
Aggressive

Photo: Liz Winterton