Fish, as a topic, encompasses the study of aquatic, primarily gill-breathing vertebrates within ichthyology, integrating anatomy, physiology, ecology, evolution, and systematics across jawless (Agnatha), cartilaginous (Chondrichthyes), and bony (Osteichthyes) lineages. Research topics include osmoregulatory strategies in freshwater and marine environments, hydrodynamics of locomotion, sensory biology (e.g., lateral line and electroreception), reproductive modes, life-history strategies, and trophic interactions within aquatic food webs. Fish also serve as model systems in developmental biology, genomics, ecotoxicology, and conservation biology, with topics addressing population dynamics, stock assessment, habitat degradation, climate-driven distribution shifts, and biodiversity patterns in marine and inland waters.
Aggression is a complex behavior dependent on numerous factors such as personal experiences, upbringing, social context, personality and genetics. Florian Reichmann and his team at the Med Uni Graz Division of Pharmacology ...
Plants & Animals
Jul 14, 2025
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As some of the worst fires in Los Angeles history swept through the Pacific Palisades and Altadena neighborhoods in January 2025, Rosi Dagit, who was herself evacuated from her home in Topanga, couldn't stop thinking about ...
Ecology
Jul 10, 2025
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42
More than a thousand fish species use sounds to exchange information, attract mates, and avoid predators through hums, grunts, clicks, and bubbles. Yet, the vital role of fish sounds—and the impact of noise pollution on ...
Plants & Animals
Jul 9, 2025
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The Greenland shark—the world's longest-living vertebrate—is most often associated with cold Arctic waters. However, a new international study led by researchers from the Greenland Institute of Natural Resources and the University ...
Plants & Animals
Jul 9, 2025
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30
A new study that looked at gut length variation between cichlid fish species found that some of the genetic loci for the trait are sex-specific even though males and females of the same species have the same gut length. The ...
Evolution
Jul 8, 2025
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17
How do you catch an invasive fish that's solitary and nocturnal?
Plants & Animals
Jul 8, 2025
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46
Predatory fish that evolved into the first terrestrial animals on Earth are still revealing insights into the origins of mammals—including new research into the eating habits of lobe-finned fish which inhabited an ancient ...
Evolution
Jul 8, 2025
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252
Manitoba is well-known for its fossil record, including the fossil-filled, world-famous Ordovician-aged Tyndall Stone and the world's largest mosasaurs, or marine reptiles, from the Cretaceous period. However, there are other ...
Paleontology & Fossils
Jul 8, 2025
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40
Fish make hanging motionless in the water column look effortless, and scientists had long assumed that this meant that it was a type of rest. Now, a new study reveals that fish use nearly twice as much energy when hovering ...
Plants & Animals
Jul 7, 2025
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50
Decades of efforts to eradicate invasive smallmouth bass from a midsized Adirondack lake have led to a surprising result: The bass rapidly evolved to grow faster and invest more in early reproduction, leading to an even larger ...
Evolution
Jun 30, 2025
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