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.
What stands out most about the book I'm carrying under my arm, as I meander through the exhibits at the National Maritime Museum Cornwall in Falmouth, is its awkwardly large size. The Piscatorial Atlas, authored by Ole Theodor ...
Ecology
Jun 30, 2025
0
17
For 50 years, scientists believed that schools of fish would save the most energy by swimming in flat diamond formations. Recently, a team of researchers at Princeton and Harvard ran an experiment to check this assumption.
Plants & Animals
Jun 27, 2025
0
59
Cod used to be giants. With their impressive size—over a meter in length and weighing up to 40 kilograms—and abundance, they, alongside herring, were the backbone of the Baltic fishery. Today, a fully grown cod would fit ...
Evolution
Jun 25, 2025
0
140
In 2015, two members of the Blue Beach Fossil Museum in Nova Scotia found a long, curved fossil jaw, bristling with teeth. Sonja Wood, the museum's owner, and Chris Mansky, the museum's curator, found the fossil in a creek ...
Evolution
Jun 25, 2025
0
34
A trade-off between tooth size and jaw mobility has restricted fish evolution, Nick Peoples at the University of California Davis, US, and colleagues report in the open-access journal PLOS Biology .
Evolution
Jun 24, 2025
0
29
Imagine watching your favorite nature documentary. The predator lunges rapidly from its hiding place, jaws wide open, and the prey … suddenly goes limp. It looks dead.
Plants & Animals
Jun 24, 2025
0
1010
I became acquainted with sharks at a very early age.
Plants & Animals
Jun 18, 2025
0
47
From hand-sized lantern sharks that glow in the deep sea to bus-sized whale sharks gliding through tropical waters, sharks come in all shapes and sizes.
Plants & Animals
Jun 18, 2025
0
40
New research led by scientists at the American Museum of Natural History sheds light on the ancient origins of biofluorescence in fishes and the range of brilliant colors involved in this biological phenomenon. Detailed in ...
Evolution
Jun 16, 2025
0
171
From the Loch Ness monster to Bigfoot, also known as Sasquatch, to the jackalope of the U.S. West, mythical animals have long captured human imagination.
Ecology
Jun 16, 2025
0
28
