Throw Back Thursday (TBT):
In the weeks ahead ducks and geese will migrate through Pennsylvania from the frozen north.
We intuitively separate ducks and geese into two classes of waterfowl — “This one’s a duck, that one’s a goose” — but how?
Three years ago I mused about this question and got a surprising answer when I asked “What’s the difference between a duck and a goose?”
Click here to find out.
(silhouette images: duck from Freedigitaldownloads, goose from Shutterstock)