Take a fish out of water and its stress hormones will go up. Adrenaline and noradrenaline, the 'fight or flight' hormones, peak first, followed more gradually by cortisol. A new study finds that ...

Endocrine disrupting chemicals are known to cause physiological and behavioral abnormalities in fish. It's a man's world for fish in a San Francisco Bay-Delta estuary. Silverside fish collected from ...

We see color because photoreceptor cones in our eyes detect light waves corresponding to red, green, and blue, while dimness or brightness is detected by photoreceptor rods. Many non-mammalian ...

Hormones that leak into streams from cattle feedlots are altering the sexual characteristics of wild fish, demasculinizing the males and defeminizing the females, according to a newly released study.

Steroid hormones appear to provide a key molecule that leads to shifts in the hearing sensitivity of females." The midshipman fish live in deep water off the Pacific Coast of the United States ...

A male fish produces a burst of hormones as he fights off an intruder. Now, researchers say that this surge isn’t triggered simply by fighting. “Apparently, the fish need to know whether they are ...

If you liked this story, share it with other people. Bangladesh has recently achieved remarkable success in freshwater fish production, with more than 1.25 million metric tons of freshwater fish ...

Synthetic growth hormones could shorten the growth time needed for farm-raised fish to reach market size. In research led by Connecticut Sea Grant scientist Thomas Chen, transgenics, or the technique ...