A snake. A ray. A shark. They each got pregnant with no male involved. In fact, scientists are finding more and more species that can reproduce on their own. What’s going on?For show transcripts, go to vox.com/unxtranscriptsFor more, go to vox.com/unexplainableAnd please email us! [email protected] read every email.Support Unexplainable by making a financial contribution to Vox: vox.com/givepodcastsPlease take a second to help us learn more about you! vox.com/podcastsurveyLearn more about your ad choices. Visit podcastchoices.com/adchoices