Environmental flow is the amount of water needed in a watercourse to maintain healthy ecosystems. The term is used in the context of rivers which have been dammed, with most ...

Normandy Nessie is the name given to a mysterious creature, believed by some to be swimming in the waters of Florida. Russ and Betty Sittloh, residents of Madeira Beach, near ...

Walleye (Sander vitreus, formerly Stizostedion vitreum) is a freshwater perciform fish native to most of Canada and to the northern United States. It is a North American close relative of ...

Catfish (order Siluriformes) are a diverse group of ray-finned fish. Named for their prominent barbels, which resemble a cat's whiskers, catfish range in size and behavior from ...

Sharks (superorder Selachimorpha) are a type of fish with a full cartilaginous skeleton and a highly streamlined body. The earliest known sharks date from more than 420 million years ...

Cod is the common name for genus Gadus, belonging to the family Gadidae, and is also used in the common name for various other fishes. Cod is a popular food ...

Mealybugs are slow-moving, small, oval pests that can be incredibly difficult to get rid of. If you have a problem with mealybugs, or if you want to make sure you ...

Feature detection is a process by which the nervous system sorts or filters complex natural stimuli in order to extract behaviorally relevant cues that have a high probability of being ...