Cheap sex tests carry a hidden cost

  This article was first published in the Sydney Morning Herald under the erroneous headline “Choosing baby’s gender threatens to skew society’s sex ratio”. (The article isn’t about “choosing gender” but rather about tests to find out the sex of…

To share is human

This commentary on a Nature paper by Katharina Hamann and collaborators was first published in The Conversation on 21 July 2011. One glance at our species can give the impression that we’re conniving, selfish and pretty greedy. But look at…