The spiny water flea was discovered in Lake Winnipesaukee in September, marking the first time the aquatic invasive species has ever been detected in the Granite State, officials announced Friday.

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." A type of zooplankton, Daphnia pulex (a.k.a. the water flea) is a microscopic crustacean whose unique ...

Spiny water fleas, another foreign species believed to have crossed the ocean in the ballast of saltwater ships, has been confirmed in Shagawa Lake near Ely. The tiny creatures, which resemble a large ...

Phytoplankton is an important component of the food-web and is predated by a wide variety of aquatic organisms, such as water fleas, copepods and fish. These microscopic algae also play a crucial role ...

BUFFALO, N.Y. -- Male water fleas that scientists have never seen have made their debut in a University at Buffalo laboratory, providing biologists with their first glimpse of these elusive organisms.