In a new study published in Mathematical Biology, Popovic and recent Concordia graduate Mariolys Rivas (PhD 14) show how the present-day distribution of physical traits across species can help explain ...

When a Yule tree is not a yule tree: in 1924, G. U. Yule created a graph to map genealogical history. At this time of year, the words “Yule tree” may conjure images of brightly decorated balsam firs.