Ethologist (noun)

1. A person who studies the behavior of animals, especially in their natural habitats.
2. A scientist who specializes in the study of animal behavior, especially in the wild.

Origin:

From the greek words "ethos" meaning "character, custom" and "logos" meaning "study".

Examples:

1. The ethologist spent years studying the behavior of chimpanzees in the wild.
2. The ethologist's research on the mating habits of birds was groundbreaking.
3. An ethologist might study the hunting techniques of lions.
4. The ethologist observed the behavior of the animals in their natural habitat.
5. Ethologists often study the behavior of animals in the wild to understand their behavior and survival strategies.