Phylogenies are a fundamental tool for organizing our knowledge of the biological diversity we observe on our planet. But how exactly do we understand and use these devices? Tree diagrams have been ...

The United Nations declared 2021–2030 to be the decade of ecosystem restoration, an initiative aiming to halt ecosystem degradation and restore 350 million hectares ...

The sequoia tree slab is an invitation to begin thinking about a vast timescale that includes everything from fossils of armored amoebas to the great Tyrannosaurus rex. NMNH Paleobotanist Scott Wing ...

Deep in the Andean rainforest, the bark from an endangered tree once cured malaria and powered the British Empire. Now, its derivatives are at the centre of a worldwide debate. Where to see the rare ...

An art project featuring a live tree that bears 40 different kinds of fruit is more than just a conversation piece. The so-called "Tree of 40 Fruit" — blossoming in a variety of pretty pink hues when ...

From Estonia to Antarctica, this once-pagan symbol has taken on many strange forms. In December 1848, an illustration showed Queen Victoria, Prince Albert, and their children admiring a Christmas tree ...