Study of 17,000 years of fish fossils reveals rapid evolution 
By Elizabeth Pennisi US Source: science 10/4/2023
Elizabeth Pennisi
Credit: Nare Ngoepe
When a new island or lake appears, the plants and animals that get there first have a leg up on later arrivals and are more likely to diversify into new species—or so evolutionary biologists have long assumed. But a study of fossils from East Africa’s Lake Victoria shows that it takes more than arriving early to win the speciation race. Although several kinds of fish colonized this lake around the same time, only cichlids took off, forming 500 species in less than 17,000 years, the team reports today in Nature.
 

“The paper uses a very smart [way] to find a clear answer to a longstanding question, which is why certain groups of organisms are more successful at forming many species over a short period of time,” says Claudius Kratochwil, an evolutionary developmental biologist at the University of Helsinki who was not involved with the work. The findings suggest opportunity and versatility matter more than primacy, adds George Turner, an evolutionary biologist and cichlid fish expert at Bangor University who was also not involved.

 
Continue...

News Id SourceStampcountry
3401Now properly classified, this tiny, translucent fish could help unlock our brains’ secretsTexas Standard2021-10-05US
3402Fishing record revoked in Connecticutfox2021-09-29US
3403Fisherman breaks nearly 30-year-old record in Floridafoxnews2021-10-12US
3404Alligator gar caught in Kansas for the first time everfoxnews2021-10-13US
3405Rare fish, last spotted in Ohio creek in 1957, declared extinctyahoo2021-10-06US
3406Who or what is killing the bass in Green Lake?Star Tribune2021-10-06US
3407State backs limited fishing of goliath grouperfox132021-10-06US
3408How to Keep a Small Aquarium Without Being Cruel to the Fishlifehacker2021-09-27US
3409Britain angers France over fishing boat licencesrte2021-09-28IE
3410Fish fertilize corals and seagrasses but not the way you thinkflu2021-09-28PA
3411How illegal fishing off Cameroon’s coast worsens maritime securitytheconversation2021-09-29CM
3412Female cleaner fish can judge when to cheat without getting caughtnewscientist2021-09-30ID
3413How to save an endangered fish? Eat their enemies, say N.S. conservation groupsCBC News2021-10-01CA
3414Grantham couple upset after pet fish of 30 years killed following otter attackgranthamjournal2021-10-04UK
3415San Marcos fish recommended to be declared extinct by U.S. governmentkxan2021-10-04US
3416British Teenager Catches Behemoth 96-Pound Wels Catfishfieldandstream2021-09-24UK
3417Fishing on the L.A. River without a poletheeastsiderla2021-09-26US
3418The redfish fishery is returning. So is angst about quotasCBC News2021-10-16CA
3419Less Than 50 Sockeye Salmon Return to Idaho’s Red Fish Lakenewsradio13102021-10-11US
3420Alaska’s vanishing salmon push Yukon River tribes to brinkopb2021-10-02US
3421Jeremy Wade on the ‘weirdest’ creature he had crossed paths withentertainment2021-09-27US
3422DEEP officials recall declaration for massive catfish caught in Coventry FOX61 2021-09-29US
3423Hendersonville man catches another monster fish on Old Hickory Lake by accidentNashville Tennessean2021-09-19US
3424Anglers feared red tide would create a ‘dead zone’ in Tampa Bay.bradenton2021-09-24US
3425Cornwall fisherman questions 'absurd' tracking system for small boatsbbc2021-09-19UK

218 219 220 136 of [221 - pages.]