Reproduction in the animal world can be complicated at the best of times. But far from the flashy birds or mammals competing ...

For years scientists have known that some species of sharks, fish and lizards are capable of "virgin births," asexual reproduction known as parthenogenesis that occurs when unfertilized eggs develop.

Scientists who study how organisms reproduce know that asexual reproduction is more efficient for one thing, it’s about twice as fast as sexual reproduction, since every offspring can produce more.

Plant reproduction is highly complex and variable across the kingdom. The emergence of sexual reproduction has contributed to increase plant genetic diversity and enabled the colonisation of new ...

In order to evaluate the relative importance of asexual and sexual reproduction to the fitness of a clonal organism, matrix projection models were used to quantify the contributions of each of these ...

This story appears in the November 2016 issue of National Geographic magazine. In sexual reproduction—the way most life-forms procreate—each parent provides half an offspring’s chromosomes. Over ...