Page 5 - லியா ரூபின் News Today : Breaking News, Live Updates & Top Stories | Vimarsana

Un 90 % de los tiburones murieron hace 19 millones de años por una causa todavía desconocida

Un 90 % de los tiburones murieron hace 19 millones de años por una causa todavía desconocida
rt.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from rt.com Daily Mail and Mail on Sunday newspapers.

United kingdomYale universityUnited statesElizabeth sibertPacific oceanLeah rubinWorld joinedProject follows globalஒன்றுபட்டது கிஂக்டம்யேல் பல்கலைக்கழகம்ஒன்றுபட்டது மாநிலங்களில்எலிசபெத் சிபெற்ட்பெஸிஃபிக் கடல்லியா ரூபின்

Scientists Uncover Mass Die-Off of Sharks

Scientists Uncover Mass Die-Off of Sharks
courthousenews.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from courthousenews.com Daily Mail and Mail on Sunday newspapers.

Rhode islandUnited statesNew yorkAtlantic oceanMatthewd potenskiElizabeth sibertLeah rubinYale institute for biosphericPlanetary sciencesYale department of earthPew charitable trustsYale instituteBiospheric studiesState universityNew york collegeEnvironmental science

Fossils: Sharks almost disappeared 19 million years ago when numbers fell by more than 70 per cent

Sharks almost disappeared from the world s oceans around 19 million years ago, with population numbers plummeting by more than 90 per cent, a study found. Researchers led from Yale University constructed a record of shark diversity and abundance spanning the last 40 million years based on fossil teeth and scales. The episode came, the team explained, at a time when shark numbers had been some ten times greater than they are today, and they never truly recovered. This fundamental shift in the ecological composition of pelagic predators paved the way for the for the large, migratory shark lineages that now dominate our oceans.

United statesNew yorkNew havenYale universityElizabeth sibertLeah rubinUniversity of new yorkState universityPincelli hullஒன்றுபட்டது மாநிலங்களில்புதியது யார்க்புதியது புகலிடம்யேல் பல்கலைக்கழகம்எலிசபெத் சிபெற்ட்லியா ரூபின்பல்கலைக்கழகம் ஆஃப் புதியது யார்க்

Sharks were almost wiped out in an extinction 19 million years ago

Sharks living in the open ocean experienced a previously unknown mass extinction event about 19 million years ago that wiped out nearly 90 per cent of the predators

Ann arborUnited statesNicholas pyensonKarina shahPacific oceanLeahd rubinMatt friedmanUniversity of londonHarvard universityElizabeth sibert at yale universityUniversity of michiganSmithsonian national museum of natural historyYale universityLeah rubinState universityNew york college

Mystery event caused shark populations to crash 19 million years ago

Fossil records show that roughly 90 percent of the planet's open-ocean sharks inexplicably vanished.

New yorkUnited statesUnited kingdomBar harborUppsala lanMohamad bazziElizabeth sibertPacific oceanLeah rubinJames raeUppsala universityYale universityUniversity of stProceedings of the royal societyCollege of the atlanticSouth pacific