Pam wants a Christmas tree in the Somerset County Festival of Trees with knitted/crocheted ornaments At a reader's suggestion, the tree will draw attention to and raise funds for St. Hubert's Giralda.

Leonardo da Vinci’s sketch of a tree illustrates the principle that combined thickness is preserved at different stages of ramification. The math that describes the branching pattern of trees in ...

In biology, phylogenetic trees represent the evolutionary history and diversification of species -- the ''family tree'' of Life. Phylogenetic trees not only describe the evolution of a group of ...

Haley Mast is a freelance writer, fact-checker, and small organic farmer in the Columbia River Gorge. She enjoys gardening, reporting on environmental topics, and spending her time outside ...

Tornadoes, hurricanes, and other extreme windstorm events cause millions of dollars in structural damage and related losses each year. They can also significantly damage ecosystems systems, driving ...

Researchers used more than 1,400 climate-sensitive tree-ring chronologies from multiple tree species across North America to reconstruct the Palmer drought severity index (PDSI), a widely used soil ...

In biology, phylogenetic trees represent the evolutionary history and diversification of species - the "family tree" of Life. Phylogenetic trees not only describe the evolution of a group of organisms ...