Insights From Twin Research: Conference at Royal Childrens Hospital, Melbourne, Australia / Twin Studies: Timing of Monozygotic Splitting and Commentary; Gestational Diabetes; ICOMBO'S Post-Partum Depression Study; Photographs of Conjoined Twins / Human Interest: Rare Quadruplets; Mistaken Identity on the Soccer Field; Prenatal Laser Surgery on Triplets; Twins Born to Prince and Princess of Monaco.

Highlights from a conference, 'Healthier Kids: Insights From Twin Research', held in Melbourne, Australia on December 5, 2014, are summarized. In addition to informative and exciting presentations and discussions of recent findings, three key themes emerged: (1) results from twin research have important implications for non-twins, (2) researchers from diverse disciplines should be encouraged to participate actively in twin research, and (3) investigators, twins and families need to work more collaboratively. Next, papers and studies concerning the biological bases of monozygotic (MZ) twinning, gestational diabetes and post-partum depression are reviewed. Finally, general interest reports of rare quadruplets, mistaken identity, prenatal laser surgery and a royal twin birth are provided.