A recent study suggests that zebrafish have four sleep substates, just like humans do—and one of them is akin to an afternoon ...

One of the world's leading brain research centers is shifting away from fruit flies and toward a tiny, transparent fish. The ...

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 ...

Observations of unusual fish behavior while bass fishing and possible explanations behind it #Fishing #BassFishing #Nature Village People lead singer dies after 'short but aggressive' illness Map ...

The remora often latches on to the exteriors of larger marine creatures. But sometimes it travels in a more intrusive spot: inside a manta ray’s backside. By Jason Bittel When danger calls, some ...

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 ...

Images of shellear fish climbing up the rock face behind Luvilombo Falls P. Kiwele Mutambala et al., Scientific Reports, 2026 under CC-BY-4.0 For more than 50 years, people have talked about tiny ...

Betta fish commonly rest on leaves or at the bottom of the tank, displaying a relaxed and peaceful demeanor. They may even take short naps lying on their side, which is typically considered normal ...

A hidden underwater camera captured a vibrant scene beneath the surface of a clear stream, where a school of common rudd (Scardinius erythrophthalmus) moves gracefully among rocks and flowing water.

The gut microbiota–brain axis, a bidirectional communication network involving neural, hormonal, immune, and metabolic pathways (1), plays a key role in host physiology, extending beyond digestion and ...