morgan23 / Getty Images A fully grown tree may lose several hundred gallons of water through its leaves on a hot, dry day. The same tree will lose nearly no water on wet, cold, winter days, so ...

Treehugger / Hilary Allison Studying leaf shape and the arrangement of leaves on a stem is the most common way of identifying a tree in the field during the growing season. The novice taxonomist ...

Despite a weekend-long email and telephone campaign from Ohio teachers and retirees, Gov. Mike DeWine let stand an overhaul ...