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 ...

CENTERVILLE — In the early morning, just as the stars are fading out of view and the eastern sky is separating into the layered colors of dawn, Jane Ward makes her way to the edge of Centerville's ...

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 ...

Kevin Guadalupe walked along the banks of the stream as Montana Stevens, outfitted in snorkel gear, popped his head out of the water to report how many fish he’d seen. “Two adults, two juveniles,” ...

"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 ...

"It's a whole new way of looking at what's in the ocean." In this undated file photo, a large group of yellowfin tuna is shown in the waters off Vibo Valentia, Calabria, Italy. Giordano Cipriani/Getty ...