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Haikalad surid 19 miljonit aastat tagasi peaaegu välja

Haikalad surid 19 miljonit aastat tagasi peaaegu välja
novaator.err.ee - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from novaator.err.ee Daily Mail and Mail on Sunday newspapers.

Elizabeth sibertiElizabeth sibertMerekaitsebioloog nicholasPaul harnikUniversity saidElizabeth sibert scienceHad elizabeth sibertSibert microscopeஎலிசபெத் சிபெற்ட்

Hace 19 millones de años los tiburones casi desaparecen de los océanos

Hace 19 millones de años los tiburones casi desaparecen de los océanos
elsiglodedurango.com.mx - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from elsiglodedurango.com.mx Daily Mail and Mail on Sunday newspapers.

New yorkUnited statesElizabeth sibertLeah rubinYale university and college of the atlanticYale university and collegeState university of new yorkபுதியது யார்க்ஒன்றுபட்டது மாநிலங்களில்எலிசபெத் சிபெற்ட்லியா ரூபின்நிலை பல்கலைக்கழகம் ஆஃப் புதியது யார்க்

Mass Extinction: 19 Million Years Ago, Sharks Were Almost Wiped Out From the Planet

(Photo : Mile Ribeiro) Ancient Shark Denticles This devastating and strange mass extinction event was discovered not too long through a series of accidental investigations, and from the proof gotten so far, what led to the sudden end to so many species is still unclear . Elizabeth Sibert, a paleoceanographer from Yale University explained: I study the teeth of microfossil fish and scales of sharks in deep-sea sediments, and we made a decision to generate an 85-million-year-long record of fish and abundance of shark, just to get a sense of what the typical variability of that population looked like in the long term.

United kingdomElizabeth sibertVova krasilnikovYale universityMile ribeiroShark denticlesIllegal shark fishing significantly risesProtected britishShark abundanceNorth pacificSouth pacificMonstrous sharkGoblin like jaws foundஒன்றுபட்டது கிஂக்டம்எலிசபெத் சிபெற்ட்யேல் பல்கலைக்கழகம்

Unexplained extinction of sharks 19 million years ago

5 de junio de 2021, 7:0Washington, Jun 5 (Prensa Latina) Shark populations became extinct 19 million years ago without the occurrence of any climate event or changes in the ecosystem, a study published in Science magazine revealed

United statesElizabeth sibertTemas relacionadosYale universityDepartment of earthPlanetary sciencesInstitute for biosphericPrensa latinaBiospheric studiesஒன்றுபட்டது மாநிலங்களில்எலிசபெத் சிபெற்ட்யேல் பல்கலைக்கழகம்துறை ஆஃப் பூமிகிரகங்கள் அறிவியல்ப்ரெந்ஸ லத்தீன்சுற்றுச்சூழல் அமைப்பு

Mystery Event Decimated 90 Per Cent of Shark Diversity 19 Million Years Ago, New Study Finds

Mystery Event Decimated 90 Per Cent of Shark Diversity 19 Million Years Ago, New Study Finds Researchers say this unidentified event caused a reduction in shark diversity by over 70 percent and almost a complete loss in total abundance By Edited by Gadgets 360 Newsdesk | Updated: 5 June 2021 12:33 IST Photo Credit: Pixabay Highlights It led to the virtual disappearance of sharks from open-ocean sediments The cause of the event is still a mystery A new study has found that a single mysterious event about 19 million years ago wiped nearly the entire population of sharks. Scientists behind the new research say that studying the shark teeth buried in deep-sea sediment, revealed that the current diversity among sharks is only a tiny remnant of a much larger variety that existed back then. They say this unidentified major ocean extinction caused the reduction in the shark diversity by over 70 percent and nearly a complete loss in total abundance. Th

New yorkUnited statesBar harborElizabeth sibertLeah rubinYale university institute for biosphericCollege of the atlanticLife scienceYale universityBiospheric studiesNorth pacificState universityNew york collegeEnvironmental scienceShark population diversity ocean event 19 million years ago study journal science yale university extinctionMysterious event sharks