Some of the most common aquatic vegetation found in Pennsylvania ponds is duckweed and filamentous algae. Despite a similar appearance from afar, they are two very different plants that, although typically beneficial for ponds, can have a negative effect if found in excessive...

What child—or adult—hasn’t wished upon a mature dandelion and gently blew the seeds—and wishes—into the wind? And who doesn’t love some colorful fireworks on a warm summer’s eve? With this fun art project, you can evoke fond memories of both summer...

With their territorial sass, iridescent colors and quick motions, hummingbirds are a delight to many. These impressive little birds are unique in that they can fly forward, backwards and upside down; they can even hover. The ruby-throated hummingbird (Archilochus...