Sexual reproduction only began to improve when early animals began facing more stress and competition ...

Scientists have uncovered the secret of the Amazon molly, an all-female fish species that has survived for 100,000 years through cloning, defying long-held evolutionary theories.

A new evolutionary theory suggests that some asexual parasites may temporarily be able to infect a wider range of hosts as harmful genetic mutations build up. In a paper published in Trends in ...

The world’s life-forms reproduce sexually in a bewildering variety of ways, even though scientists still aren’t sure why they bother.

A study has found that the reason why the evolution of the first animals to appear on Earth was delayed for over 10 million years was due to their reproductive methods. Early animals reproduced by ...

This video explains the stages of mitosis, contrasts them with meiosis and the creation of haploid gametes, and concludes by ...

Frogs that hatch during the cooler months of December through April are exposed to fewer infected frogs, but those they do ...

The Amazon molly, an all-female fish, has defied evolutionary expectations by surviving for 100,000 years without males. This remarkable species reproduces through gynogenesis, essentially cloning ...

Every fall, thousands of male tarantulas abandon their burrows and roam the American Southwest, but the word "migration" ...

In this episode, they describe the process of ventilation and gas exchange and the bodily adaptations that support these processes.