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Ichthyology

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24/7 Killifish Tracking Lets AI Predict Lifespan by Early Midlife

The findings suggest behaviour can serve as a readout of biological ageing, with translation to humans still unproven.

Oldest Articulated Bony Fish and Giant Megamastax Redraw Osteichthyan Origins

Nature Communications Study Finds Greenland Sharks Keep Low‑Light Vision Into Old Age

Greenland Sharks Keep Their Vision for Centuries, Study Finds

Greenland Sharks Retain Vision for Centuries, Nature Communications Study Finds

115-Million-Year-Old Australian Shark Fossils Push Back Onset of Giant Body Size in Modern Sharks

Roblox Fisch’s Cultist Lair Bestiary Documented With 21 Area-Exclusive Catches

Spotted Ratfish Males Grow True Teeth on Their Heads, Challenging Tooth Biology

New Lanternshark and Porcelain Crab Described From CSIRO’s 2022 Deep-Sea Survey

67-Million-Year-Old Alberta Fossil Recasts Otophysan Fish Origins

Male Ratfish Grow True Forehead Teeth for Mating, Study Finds

Ghost Sharks Grow True Forehead Teeth, Rewriting Rules of Tooth Development

310-Million-Year-Old Fossil Reveals Earliest Tongue-Bite in Ray-Finned Fish

Study Details Thousands of Tiny Bumblebee Catfish Climbing a 4-Meter Brazilian Waterfall

Study Documents Bumblebee Catfish Climbing Waterfalls in Brazil

Early Zebrafish Heartbeats Drive Self-Organizing Cardiac Trabecular Growth

Scientists Confirm New Cyprinid Fish in Brahmaputra, Urge Conservation Zone

New Cave-Dwelling Fish Species Discovered in Meghalaya

Shark Cartilage Study Reveals Nanoscale Design for Strength and Flexibility

Rare Lateral Jaw Motion in Reef Fish Unveiled by UC Davis Researchers