Grass-in-ear behavior

High school (ages 12+)
Animals & Nature

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/grass-in-ear-behavior

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. How big is Grass-in-ear behavior?Primate cultural evolution and social learning
2. What is the scientific name?Pan troglodytes (Chimpanzee)
3. What is the behavioral classification?Learned, non-utilitarian tradition
4. What is grass-in-ear behavior in chimpanzees?It is when a chimpanzee puts a grass stem, twig, or small object into its ear canal. This habit is seen in wild chimp groups and is not used for food or cleaning.
5. Why do chimpanzees put grass in their ears?Scientists are not sure why they do it. It doesn't help them find food or avoid danger, so it might be something they do for fun or to feel good.

Ethology: The scientific study of animal behavior, particularly in natural environments.
Non-utilitarian: Not designed or intended to be useful or practical.
Social Transmission: The process by which behaviors, knowledge, or skills are passed from one individual to another within a social group.