Researchers have analyzed the antibody Immunoglobulin M in rainbow trout to shed some light on why these proteins may have evolved over time. Antibodies -- proteins that are produced by our immune ...

The distribution and relative abundance of minnows and minnow-like fishes of small Ozark watersheds show patterns that could be attributed to interspecific interactions such as competition. Species ...

This is a preview. Log in through your library . Abstract Long-term changes in the age and size structure of animal populations are well documented, yet their impacts on population productivity are ...

Male spotted ratfish have true teeth on a forehead appendage used for mating. Across vertebrates, teeth share many defining ...

Scientists discovered true teeth growing on the head of the spotted ratfish, a distant shark relative. The toothed structure, called a tenaculum, helps males hold onto females during mating. Genetic ...

When saltwater fish long ago evolved to live in fresh water, many of them also evolved a more sophisticated hearing system, including middle ear bones similar to those in humans.

Lake Eufaula got an infusion of new brush pile structures recently, including a new configuration regional fisheries biologist Danny Bowen had his crew constructing over the winter months. "I call it ...