Although most primates live in groups with some form of social interaction, there are a few solitary species of primates, such as orangutans and some strepsirrhines. Identify the behaviors and characteristics of solitary primates.

Answer: Characteristics of solitary primates are:

1) Interaction between adult males and adult females occurs only for sexual activity.

2) Sexual dimorphism is high.

Explanation:

1) Interaction between adult males and adult females occurs only for sexual activity: Males that have not been successful in finding a mate often become even more solitary than their more successful counterparts.

2) Sexual dimorphism is high: Orangutan males are twice the size of females and have large canines and cheek pads.