Fish in behavior research: unique tools with a great promise!

Area of Science:

• Comparative biology
• Vertebrate evolution
• Biomedical research

Background:

• Fish are the most diverse vertebrate class, representing an untapped resource for biological research.
• Traditional biomedical models (e.g., mice, rats) have limitations.
• New species are needed to expand the scope of biomedical research.

Purpose of the Study:

• To discuss the merits of incorporating fish species into the list of biomedical model organisms.
• To highlight the potential of fish for comparative analyses in understanding organismal function and evolution.
• To review the advantages and disadvantages of zebrafish as a model organism, particularly in brain and behavior research.

Main Methods:

• General discussion of principles for incorporating new model organisms.
• Review of zebrafish as a model organism.
• Case examples illustrating zebrafish utility and limitations in biomedical research.

Main Results:

• Fish offer a diverse platform for comparative studies, advancing understanding of biological mechanisms and evolutionary processes.
• Zebrafish are emerging as a valuable model, especially for neurobehavioral research, due to their unique advantages.
• Specific examples demonstrate both the strengths and weaknesses of using zebrafish in biomedical contexts.

Conclusions:

• Expanding the repertoire of model organisms to include fish, such as zebrafish, is crucial for comprehensive biomedical research.
• Zebrafish present significant opportunities for novel discoveries in brain and behavior research.
• Further research is warranted to fully leverage the potential of fish models in science.