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.
Life beneath the waves can be a game of cat and mouse. Seals pursue swimming fish by following the tell-tale wakes and spinning vortices they leave behind, sensing the faint swirls with their sensitive whiskers. But fish ...
Plants & Animals
Sep 30, 2025
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Antarctica's Southern Ocean is one of the most demanding places on Earth when it comes to survival. Its waters plunge below freezing, long periods of darkness restrict growth and feeding, and food webs shift with relentless ...
Plants & Animals
Sep 30, 2025
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165
Researchers from FishEye Collaborative, a conservation-technology nonprofit, Cornell University, and Aalto University have developed a new tool that combines underwater sound recording and 360° video to pinpoint the sounds ...
Ecology
Sep 26, 2025
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201
Species across the planet are on the move. Climate change has already caused more than 12,000 species to shift their homes across land, freshwater and the sea. They move to escape unfavorable conditions or to explore ecosystems ...
Plants & Animals
Sep 23, 2025
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25
A team led by University of Georgia ecologists documented two new species of black bass, Bartram's bass and Altamaha bass, in a new paper.
Plants & Animals
Sep 19, 2025
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133
How did digits evolve? While it is clear that they derive from genetic programs already present in fish, their precise origin remains a matter of debate. An international team led by the University of Geneva (UNIGE) with ...
Evolution
Sep 17, 2025
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243
Fish living in warm and arid climates are used to adversity. High temperatures and droughts can routinely cause the streams they call home to stop flowing or dry out altogether.
Ecology
Sep 17, 2025
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21
Sri Lanka will ban four species of predatory ornamental fish including piranhas that have escaped into rivers and lakes, devastating native species and threatening fragile freshwater ecosystems, the fisheries minister said ...
Ecology
Sep 17, 2025
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31
A new study from the University of North Carolina at Chapel Hill has uncovered that shark meat sold in U.S. grocery stores, seafood markets, and online vendors often comes from endangered species and is frequently mislabeled. ...
Plants & Animals
Sep 10, 2025
1
246
Sharks, skates and rays adapt their growth and reproduction to changing food availability, a new study reveals.
Plants & Animals
Sep 8, 2025
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