Punnett's Square

Scientists from the University of Liverpool recently published an article in Science Daily that discussed a newly discovered a method to detect the proteins associated with longevity. The scientists further looked in to the genome of 30 mammalian species to look for specific proteins that code for longevity. They found a certain protein responsible for repairing damaged DNA. When they took a closer look at the protein they found it evolves and mutates in a non-random way, in animals species that live longer.The scientists concluded that certain proteins are selected by evolution to change in longer living mammals, such as humans and elephants.