Question

Which type of psychologists would be most likely to study the communication patterns of chimpanzees and porpoises?

Answer 1

Psychology has many different branches, as human mind is a complex structure to analyze. When a psychologist is dedicated to analize behavioral patterns specially those of communication, can belong to a branch of psychology called Comparative Psychology, which deals with the analysis of animals in order to determine similarities between the animal behavior and human psycholinguistics.    

Answer 2

The type of psychologist who would be most likely to study the communication patterns of chimpanzees and porpoises would be an ethologist.

Explanation:

The scientific study of the psychology of animals is called 'ethology'. One who is an expert in animal psychology is thus called an ethologist. The discipline of animal psychology is to a great extent different from that of human psychology. Thus, it requires a person to be specialized in ethology to understand animal psychology.

Comparative Psychology is a sub-discipline of psychology and ethology. This  would be most likely to study the communication patterns of chimpanzees and porpoises.