- The study of heredity
- Much of the history of genetics is due to studies on microbial systems.
- The field of genetics was founded on the discovery of DNA and that it is the molecule required for heredity.

Genetics

All mammal brains possess the same structures responsible for visual, auditory, and somatosensory processes, despite some variation in the specific dimensions and locations of these structures as species adapted to their unique environments. 

Homology of the Brain 

- Physical similarities caused by common ancestry 

Smith College

Arizona State University

As evolution takes place, similar adaptations (physical or behavioral) can be found in different populations through the following: 
- convergent evolution 
- common ancestry
- analogy 

Similarities within Adaptations

Breedlove, S. & Watson, N. (2017). Behavioral neuroscience, eighth edition. Oxford University Press.

Behavioral Neuroscience 8th Edition

- When faced with similar environmental demands, distantly related species may evolve to have similar behaviors/physical features

Convergent Evolution

- Structures that may serve the same purpose, but are physically different
- For example, the hand of a human, versus the trunk of an elephant

Learn Before

Related

Learn After