In 1999, a clownfish (Amphiprion ocellaris) hatched in the aquarium of a tropical fish hobbyist in the UK. These clownfish are prized by aquarists for their unique pattern of three straight white bars bordered by a thin black ...
Evolution
Apr 6, 2026
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128
For decades, scientists have observed a clear pattern across the natural world: biodiversity tends to be higher near the equator and lower toward the poles. Known as the latitudinal diversity gradient (LDG), this trend holds ...
Evolution
Mar 31, 2026
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10
Courtship calls among two species of fish commonly found on Australian coral reefs have been described, and researchers say their "accents" can vary significantly between regions. Scientists led by the Australian Institute ...
Plants & Animals
Mar 26, 2026
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9
The Chesapeake Bay's most popular crustacean has a dark streak. Cannibalism is the No. 1 killer of juvenile blue crabs in mid-salinity waters where they are known to congregate, according to a new study from the Smithsonian ...
Plants & Animals
Mar 16, 2026
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58
More than 40% of extant large freshwater animals (megafauna), including carp, salmonids, crocodilians, turtles, beavers, and hippopotamuses, have been deliberately introduced outside their natural range, often for economic ...
Plants & Animals
Mar 9, 2026
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17
Environmental DNA (eDNA) tests can identify genetic material left by organisms in the environment, such as cells and excrement, but surveys of ocean wildlife can be difficult and expensive, and standard eDNA tests are also ...
Ecology
Mar 9, 2026
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13
Anglers along the Gulf Coast have long prized the hard-fighting, mild-tasting gag grouper (Mycteroperca microlepis), but some may have been surprised over the past few years by shortened seasons for this desirable reef fish. ...
Plants & Animals
Mar 2, 2026
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18
The gilthead seabream, a species of commercial interest that migrates seasonally, does not form independent local populations in the northwestern Mediterranean but instead constitutes a single, functionally connected population ...
Ecology
Feb 26, 2026
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13
Emperor penguins shed all their feathers once a year, a precarious ritual that may have become deadly as climate change pushes them into shrinking patches of Antarctic sea ice, researchers said Wednesday.
Ecology
Feb 25, 2026
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19
In the canals, marshes, and swamps of the Florida Everglades, invasive fish are silently slipping into new waterways. Among them are the Asian swamp eel and the bullseye snakehead, two air-breathing predators that live in ...
Ecology
Feb 25, 2026
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