Researchers have demonstrated that the maximum life span of Drosophila melanogaster can be increased dramatically through artificial selection. This clearly demonstrates that genetic variation for increased longevity exists in
D. melanogaster populations. Why have flies likely not evolved longer life spans?

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The Answer of Researchers have demonstrated that the maximum life span of Drosophila melanogaster can be increased dramatically through artificial selection. This clearly demonstrates that genetic variation for increased longevity exists in
D. melanogaster populations. Why have flies likely not evolved longer life spans?

Researchers Have Demonstrated That the Maximum Life Span of Drosophila