Why is it helpful for us to study relatively simple animals?

Answer 1

So that we can understand more simple minds and gradually work our way up to more complex mental process of animals.

Answer 2

Studying simple animals like worms and insects can provide insights into basic biological processes that are conserved across species, helping us understand fundamental principles of Biology. Additionally, simple animals often have faster generation times and simpler genetic systems, making them useful models for research on genetics, behavior, and disease.