Carl Zimmer's new book She Has Her Mother’s...  ...and ambiguous genitals who appeared at a Seattle genetics clinic. Her ovaries proved to have only XX chromo...

Did you find a four-leaf clover this St. Patrick's Day? Was it Luck o' the Irish? ... Or was it science? Four-leaf clover is rare: only about 1 in 10,000 clover plants grow four leaflets. But thanks to science, th...

(Photo: NIH)Scientists have made a breakthrough in the search for a more effective treatment for HIV. Researchers at Temple University in Philadelphia used gene editing techniques to remove the HIV-1 virus from the genom...

(Photo: Shankar S.)The cells of older and larger animals divide more times than those of smaller and younger animals. So, hypothetically, large animals that live a long time should be at greater risk for developing cance...

(Photo of Johnny, a guevedoce, via the Daily Telegraph)They're called the guevedoces, which translates into English as "penis at twelve." The isolated village of Salinas in the Dominican Republic is the center of an extr...

(Maps via the Daily Telegraph)In the early Fifth C...  ...anged much since 600AD.“When we plotted the genetics

Daughter (l) and mother (r) | Image: Danielle McCo...  ...looks. Despite changing hairstyles and clothing, genetics ensure that the faces remain similar. This collec...

(Image from Psycho by Universal Pictures)According to some medical researchers, there's good reason to think so. Hypothetically, gene therapy could reduce or limit fear and subsequent trauma from terrifying situations. G...

[http://www.youtube.com/watch?v=NPvMUpcxPSA] (Video Link)Joe Hanson is a biologist and the host of the PBS online series It’s Okay to Be Smart. In this video, he explains why it’s odd that there so few left-h...

(Image: NASA)Assuming that faster-than-light travel is physically impossible, humanity's options for colonizing other star systems are limited. A multi-generation starship or one in which the settlers are traveling in so...