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 ...

Genetic diversity is essential to the survival of a species. It's easy enough to maintain if a species reproduces sexually; an egg and a sperm combine genetic material from two creatures into one, ...

If you've ever had a spiny leaf insect as a pet, or you're considering getting one, hopefully someone has warned you about this: if you put one in your enclosure, you might come back some time later ...

For millions of years, some of Earth’s earliest animals barely changed. They lived, grew, and spread across the seafloor, but ...

In the framework of an international research project, a team of scientists have demonstrated for the first time that asexual reproduction can be successful in the long term. The animal they studied ...

In the course of evolution, animals have repeatedly shifted from sexual to asexual reproduction. The first evidence of the consequences of parthenogenesis – a type of asexual reproduction – on genome ...

For all intents and purposes, the Amazon $AMZN molly should be on a crash course to extinction. Shockingly, it’s not only survived, but thrived. Over time, the all ...

Does all the stress of finding a partner get you down? Do you ever wish you could just start a family of your own, with kids that looked just like you, but without all of the trouble of finding ...

The common fruit fly normally needs a mate to reproduce. But scientists tinkering with its genes found the ones that can induce parthenogenesis, or virgin birth. For the first time, scientists ...

Fossils from some of the oldest-known animals on Earth, dating from 574 million years ago (Ediacaran period), suggest that cloning, not competition, dominated the Ediacaran seas, slowing evolution ...

As much as 6 percent of people are intersex, having chromosomes, gonads, and/or genitals that do not fit neatly into a male or female category. For this and other reasons, human biology is not binary.