Chapter 3 - Non-Human Primates

Question 1

What differentiates Strepsirrhines from Haplorhines?

Answer 1

• The presence of a rhinarium, which is a wet nose found in strepsirrhines but NOT haplorhines
• Strepsirrhines’ nostrils are comma-shaped and long, and Haplorhines’ nostrils are rounded.
• Strepsirrhines have a toothcomb which they likely use for grooming.

Question 2

What is the difference between the Hominoidae and Hominidae?

Answer 2

Hominoidae is a larger group than Hominidae, which includes Orangutans, Gibbons, Gorillas, Chimps, Bonobos, and Humans. Hominidae does not include Gibbons.