Cloning on a grand scale could spell the end of species as they become progressively nastier, warn researchers at the University of Sussex.
Evolutionary biologist Dr Joel Peck has produced a mathematical model that suggests that asexual reproduction –in which organisms are reproduced from a single parent without fertilisation – leads to antagonistic behaviour within species and, subsequently, population decline.
“For decades evolutionary biologists have wondered why sexual reproduction persists when asexual reproduction seems more efficient, “ says Dr Peck. “Virtually all species that are now asexual – excluding microbes - were originally sexual. But we have also seen that these asexual organisms are prone to rapid extinction.”
Jacqui Bealing | alfa
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