Approximately 99.9% of fish and shark species are "cold-blooded," meaning their body tissues generally match the temperature of the water they swim in—but researchers have just discovered the mighty basking shark is a one-in-a-thousand ...
Plants & Animals
Jul 20, 2023
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One is the largest animal known to have ever existed. The other is a revered predator at the top of its food chain. But would a blue whale and a great white shark ever find themselves at odds with each other in the wild?
Plants & Animals
Sep 2, 2022
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44
A fish larger than a man, tasty as well as beautiful, the freshwater pirarucu is a favorite with poachers in a lawless part of the Amazon jungle where Brazil, Peru and Colombia meet.
Ecology
Jun 10, 2023
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37
There once was a small fish called "tequila splitfin" or "zoogoneticus tequila" that swam in a river in western Mexico, but disappeared in the 1990s. Scientists and residents, however, have achieved the return of a species ...
Plants & Animals
Jan 2, 2022
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The CT-scanned skull of a 319-million-year-old fossilized fish, pulled from a coal mine in England more than a century ago, has revealed the oldest example of a well-preserved vertebrate brain.
Evolution
Feb 1, 2023
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198
Some copepods, diminutive crustaceans with an outsized place in the aquatic food web, can evolve fast enough to survive in the face of rapid climate change, according to new research that addresses a longstanding question ...
Evolution
Jul 14, 2022
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681
A Case Western Reserve University scientist has played the lead role in identifying an invasive species related to one already threatening other fish in the waters of the southern United States.
Plants & Animals
Jun 8, 2021
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In an attempt to rescue a rare darter in the lower Susquehanna River, a Penn State research team, working with the Pennsylvania Fish and Boat Commission, has determined that the fish is a distinct subspecies found nowhere ...
Plants & Animals
Jun 23, 2023
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228
Four decades of conservation spending totaling more than $9 billion in inflation-adjusted tax dollars has failed to improve stocks of wild salmon and steelhead in the Columbia River Basin, according to Oregon State University ...
Ecology
Jul 28, 2023
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(Editor's note: This article contains minor spoilers for the Netflix series "Wednesday.")
Plants & Animals
Feb 7, 2023
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