MADISON – For more than a century, biologists have been working to assign plants, animals and microbes their respective places on the tree of life. More recently, by comparing DNA sequences from a few ...

Tree thinking is a pedagogical approach that emphasises the interpretation and construction of phylogenetic trees to elucidate evolutionary relationships. In the context of evolutionary biology ...

Scientists have discovered a completely new branch on the tree of life. This “supergroup” contains an incredibly diverse range of predatory microbes that are extremely different genetically from any ...

I recently participated in the Minnesota Shade Tree Short Course, which is a two-day professional development conference for tree care professionals sponsored by the University of Minnesota. More than ...

Gregory Moore does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...

When ash trees started to be removed in St. Paul, Mary Heskel began to wonder. The Macalester College biology professor knew, of course, that the trees — one of the most widely planted in the city — ...