Skip the candy and share some color! This free "You Color My World" Valentine printable is an easy and creative way to spread ...

Global warming is producing a rapid loss of plant species -- according to estimates, roughly 600 plant species have died out since 1750 -- twice the number of animal species lost. But which species ...

A Bucknell University couple has published a new edition of their field guide to the shrubs and woody vines of the region, a ...