“This green aphid is populating the world with herself. She’s a virgin, and by cloning herself, she produces a genetically identical daughter every 20 minutes. The babies even have babies inside them – so the mother aphid nurtures her granddaughters even before they’re born. Such prolific clones bent solely on breeding are easy pickings for others. “
“Genetic variability is a weapon to battle with environmental changes. In a perfect and stable world, it’s likely all females of all species would prefer to clone, but getting rid of males is difficult once they’re there.”
(from BBC website)
