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Mt. Shasta Sisson Museum's new director is a MSHS grad and Ford Scholar

Mt. Shasta Sisson Museum's new director is a MSHS grad and Ford Scholar
mtshastanews.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from mtshastanews.com Daily Mail and Mail on Sunday newspapers.

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High genomic diversity is good news for California condor

Credit: Photo courtesy of San Diego Zoo Wildlife Alliance
Despite having been driven nearly to extinction, the California condor has a high degree of genetic diversity that bodes well for its long-term survival, according to a new analysis by University of California researchers.
Nearly 40 years ago, the state s wild condor population was down to a perilous 22. That led to inbreeding that could have jeopardized the population s health and narrowed the bird s genetic diversity, which can reduce its ability to adapt to changing environmental conditions.
In comparing the complete genomes of two California condors with those of an Andean condor and a turkey vulture, UC San Francisco and UC Berkeley scientists did find genetic evidence of inbreeding over the past few centuries, but, overall, a wealth of diversity across most of the genome. ....

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See millions of years of history while beachcombing in San Francisco

See millions of years of history while beachcombing in San Francisco
Sand dollar skeletons and fossils turn Ocean Beach into a living lab perfect for a family day trip.
Sand dollar skeletons, or “tests,” wash up in great numbers on San Francisco’s Ocean Beach. Examining these and other ephemera from the sea makes for a great science day trip for the whole family.Photograph by Robert C. Paulson Jr., Alamy
ByJordan Kushins
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When walking along San Francisco’s Ocean Beach, it’s nearly impossible to miss the sand dollars that dot the shoreline. At almost any time of day and tide, any season of the year, these white discs stretch as far as the eye can see: some cracked underfoot or broken in the Pacific waves, others still full and flawless with a flower-like pattern on top. ....

United States , San Andreas Fault , California Academy Of Sciences , Ocean Beach , Golden Gate National Recreation Area , San Francisco , Ashley Dineen , Uc Museum Of Paleontology , Bay Area , Rich Mooi , California Academy , Merced Formation , San Andreas , Fort Funston , Mussel Rock Park , Golden Gate Park , ஒன்றுபட்டது மாநிலங்களில் , சான் ஆண்ட்ரியாஸ் தவறு , கலிஃபோர்னியா கலைக்கழகம் ஆஃப் அறிவியல் , கடல் கடற்கரை , தங்கம் வாயில் தேசிய பொழுதுபோக்கு பரப்பளவு , சான் பிரான்சிஸ்கோ , ஆஷ்லே தீநீன் , அக் அருங்காட்சியகம் ஆஃப் பேலீயஂடாலொஜீ , வளைகுடா பரப்பளவு , பணக்கார மூ ,

Billions and billions of tyrannosaurs walked the Earth

Billions and billions of tyrannosaurs walked the Earth
Scientists arrived at the estimate by using calculations based on size, metabolism, and the populations of animals today.
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CBC Radio ·
Posted: Apr 23, 2021 5:17 PM ET | Last Updated: April 23
Over approximately 2.5 million years, North America was likely home to 2.5 billion Tyrannosaurus rexes. Less than 100 have been dug up and studied by paleontologists, according to a UC Berkeley study( Image by Julius Csotonyi, courtesy of Science magazine) ....

United States , Smithsonian Institution , District Of Columbia , Berkeley Keegan Houser , Charles Marshall , Uc Museum Of Paleontology , California Berkeley , Keegan Houser , North America , Hell Creek Formation , California Museum , ஒன்றுபட்டது மாநிலங்களில் , ஸ்மித்சோனியன் நிறுவனம் , மாவட்டம் ஆஃப் கொலம்பியா , சார்லஸ் மார்ஷல் , அக் அருங்காட்சியகம் ஆஃப் பேலீயஂடாலொஜீ , கலிஃபோர்னியா பெர்க்லி , கீகந் ஹவுசர் , வடக்கு அமெரிக்கா , நரகம் க்ரீக் உருவாக்கம் , கலிஃபோர்னியா அருங்காட்சியகம் ,

Ideas, Inventions And Innovations : 2.5 Billion Tyrannosaurus Rexes Roamed North America over a Period of 2.5 Million Years

Ideas, Inventions And Innovations
2.5 Billion Tyrannosaurus Rexes Roamed North America over a Period of 2.5 Million Years
Over approximately 2.5 million years, North America likely hosted 2.5 billion Tyrannosaurus rexes, a minuscule proportion of which have been dug up and studied by paleontologists, according to a UC Berkeley study.
Image by Julius Csotonyi, courtesy of Science magazine
How many Tyrannosaurus rexes roamed North America during the Cretaceous period?
That’s a question Charles Marshall pestered his paleontologist colleagues with for years until he finally teamed up with his students to find an answer.
What the team found, to be published this week in the journal Science, is that about 20,000 adult T. rexes probably lived at any one time, give or take a factor of 10, which is in the ballpark of what most of his colleagues guessed. ....

United States , Smithsonian Institution , District Of Columbia , Monte Carlo , Hell Creek , San Diego , Valley Life Sciences Building , Connorj Wilson , Tannerm Frank , John Damuth , Ashley Poust , Connor Wilson , Katherinem Magoulick , Santa Barbara , Tanner Frank , Daniel Latorre , Keegan Houser , Katherine Magoulick , Danielv Latorre , Julius Csotonyi , Felicia Smith , Philip Sandford Boone , Harley Garbani , Ashleyw Poust , Joshuab Zimmt , Charles Marshall ,