Scientists have discovered for the first time that invasive rats on tropical islands are affecting the territorial behaviour of fish on surrounding coral reefs. The new study, led by scientists from ...

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Not all individuals of the same species are identical: There is a marked variability within the same population, and sometimes, these morphological differences are translated into a different behavior ...

Add Yahoo as a preferred source to see more of our stories on Google. The U.S. government is mounting an emergency response in an effort to save a unique and endangered fish found off the coast of ...

Human medicines that act on important signal systems in the brain make fish bolder, shows a new study on three-spined sticklebacks by researchers at Linköping University. The results reinforce that ...

Forbes contributors publish independent expert analyses and insights. GrrlScientist writes about evolution, ecology, behavior and health. Antidepressants with tongue-twisting names such as fluoxetine ...

Cocaine pollution can affect the behavior of fish—altering, for example, the way Atlantic salmon move through their environment, prompting them to swim farther and disperse over a wider area. So finds ...

There is a long-standing tension between aquarium hobbyists and marine biologists over how to interpret fish behavior. Scientists rely on controlled studies, data, and field research, while hobbyists ...