"Hearst Magazines and Yahoo may earn commission or revenue on some items through the links below." While fish don’t have much mathematical ability, a new study shows that some species can add and ...

ALBUQUERQUE, N.M., -- Where do fish occur in a river? To the casual observer, all parts of a stream seem alike: wet! But fish experience the river as complex habitat, and discern many subtle ...

Spring is just a few weeks away, and for the Barnstable Clean Water Coalition that means one thing in particular: It's time to count fish. Not just any fish. River herring. The organization is putting ...

If someone asked you if fish could count, your response would probably be… probably not? Counting seems like an ability far beyond the cognitive functions of a fish, right? Perhaps not. While the ...