For most living things, sexual reproduction has proven the best overall strategy to perpetuate a species in the rough-and-tumble, unpredictable fray of natural selection. With two partners ...

Some species of whiptail lizards have done away with males entirely. The all-female populations reproduce asexually and to do so they start with double the normal number of chromosomes.

It is generally believed that sexual reproduction leads to fewer harmful genetic mutations than asexual reproduction. In their new study, Maldonado and his co-authors tested this theory by ...

Reproduction in animals varies from species to species. Some types of reproduction, like parthenogenesis, are more unusual than others. This reproductive method requires only one individual rather ...

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Because it’s challenging to track how often parthenogenesis happens in the wild, many “firsts” in asexual reproduction are seen in animals in human care. For vertebrates, whether in the wild ...

In contrast, the ascidian from Eilat, Polycarpa mytiligera, is an organism with a solitary lifestyle, without the capacity for asexual reproduction, similar to humans.

For the fruit fly experiments, Rice and Adam K. Chippindale (a post-doctoral fellow soon to be on the faculty at Queen's University in Canada), used genetic tools to manipulate the fruit fly so that ...

The Whip Tail Lizard is native to North America, and only reproduces by Parthenogenesis. All of it's offspring are female. With some species like the whiptail lizard, only females are produced.