Fruit fly (Drosophila melanogaster) is known as a model organism that is commonly used in many
genetic studies. With its favorable features including rapid life cycle, large number of offspring in a
generation, relatively simple genetics with only four pairs of chromosomes, fruit fly is considered as the
ideal model for many biological studies, especially those related to human diseases. In this study, the
CS wild-type Drosophila melanogaster strain was used to experiment under two different conditions of
ambient temperature, which are from 29 to 34°C and 25°C in order to compare the effect of
temperature on its life cycle, reproductive capability and its longevity as well. The study results
demonstrated that fruit flies raised at 25°C were capable of good growth and reproduction. They also
had a longer life expectancy when they were raised at 25°C. Therefore, raising fruit flies in the
condition of 25°C is suitable for studies which are in need of using these useful organism.