Why do scientists perform research on animal species such as fruit flies?

Scientists perform research on animal species like fruit flies due to their simplicity, short life cycles, and genetic similarities to higher organisms, including humans. Fruit flies, or Drosophila melanogaster, have well-mapped genomes, making them ideal for studying genetics, development, and behavior. Their rapid reproduction allows researchers to observe evolutionary changes and genetic variations over multiple generations in a relatively short time. This research can provide insights into fundamental biological processes and contribute to our understanding of human health and disease.