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Wild Rats. In the wild, the life expectancy for a rat is much lower: 95 percent of wild rats die before they reach their first birthday. A 1-year-old rat would be around 30 years old in human terms. The most common cause of death in wild rats comes from predators, such as owls, hawks and foxes.
GIVE A GIFT. Naked mole rats reveal why they are immune to cancer. IF HUMANS lived as long relative to body size as naked mole rats, we would last for 600 years. These mouse-sized, subterranean African mammals live for over 30 years, and if that wasnât impressive enough, they donât get cancer. Now we have a clue why, which could lead to treatments for a variety of human conditions.