Selfish elements live in a wide variety of organisms (including humans), and have devised a variety of methods for getting themselves passed on. (sciencenews.org)
Caloric restriction is a proven method for lengthening life span of a wide variety of organisms, but scientists still don't know exactly how it works. (sciencenews.org)
When researchers have looked at single or even pairs of factors in a wide variety of organisms, they've made many valuable findings about the biology of aging, Rand said. (sciencedaily.com)