So, you can read a tree diagram like a picture story of evolutionary history. The trunk of the tree is the ancestral line, made up of generation after generation of the same type of organisms.

— The Penns Grove Shade Tree Commission and the Historical Society of Penns Grove, Carneys Point and Oldmans will celebrate Arbor Day 2012 with a tree planting ceremony, 4 p.m., Friday, on the ...