#DinosaurFamilyTree, #MatthewBaron, #ThomasHoltz, #DinosaurPhylogeny, #paleontologist, #UniversityofMaryland, #dogmaticviews
Toronto, Mar 24 (Canadian-Media): Scientists had been suggesting replacement of older and the first classification system of the dinosaurs laid out in 1888 with the new one, media reports said.
After an analysis of 75 species of dinosaurs, scientists on Wednesday came to the conclusion that meat-eating group that includes T. rex should be separated from the plant-eaters like Brontosaurus due to their irreconcilable differences.
"We may be proved to be correct, we may not," said University of Cambridge paleontologist Matthew Baron, who led the research published in the journal Nature, CBCNews reports said.
Scientists also believed that dinosaur originated 252 million years ago.
Baron tweeted,“The first dinosaurs emerged in an area that is now Britain.”
University of Maryland paleontologist Thomas Holtz tweeted, “Dinosaurs could have a UK origin https://t.co/GPSDze5px7 via @MailOnline.”
Baron tweeted, “Radical shakeup of dinosaur family tree points to unexpected Scottish origins https://www.theguardian.com/science/2017/mar/22/scottish-fossil-may-cause-radical-shakeup-of-dinosaur-family-tree-saltopus?CMP=share_btn_tw … #ScottishTakeOnOrnithoscelida.”
Another tweet by Baron, “A shocking new study just disproved the 130-year-old theory about where dinosaurs came from http://uk.businessinsider.com/cambridge-study-disproves-130-year-old-dinosaur-origins-theory-nature-2017-3 … via @BIUK_Tech”
Another tweet by Baron, “Provocative major re-organisation of dinosaur phylogeny http://www.nature.com/news/dinosaur-family-tree-poised-for-colossal-shake-up-1.21681 … http://www.nature.com/nature/journal/v543/n7646/full/nature21700.html … http://www.nature.com/nature/journal/v543/n7646/full/543494a.html … @nature.”
"But what has to happen now is a complete abandonment of old dogmatic views across the field because we have shown that rigorous and objective studies can pull apart age-old ideas, and that we as scientists should never get too comfortable with an idea when it can still be tested in new ways," said Baron, CBCNews reports said.
Facebook post by Holtz “New study shakes up the dinosaur family tree https://t.co/EpIWtCS2JI via @usatoday.”
Baron proposed two newly devised categories. The first, called Ornithoscelida, joins the theropods with all the current members of Ornithischia.
Baron’s tweet, “A new theory proposes a radical regrouping of dinosaurs into two new major groups http://go.nature.com/2nIZc79.”
“Palaeontology: Dividing the dinosaurs
Tweets by Holtz, “
Ornithoscelida Rises: A New Family Tree for #Dinosaurs
https://blogs.scientificamerican.com/tetrapod-zoology/ornithoscelida-rises-a-new-family-tree-for-dinosaurs/ … #evolution #phylogeny #fossils.”
Bob Nicholls, Professional paleoartist, “Ornithischians + Theropods = Ornithoscelida! http://www.nature.com/nature/journal/v543/n7646/full/nature21700.html. “
Nicholls’ blog: “https://blogs.scientificamerican.com/tetrapod-zoology/ornithoscelida-rises-a-new-family-tree-for-dinosaurs/ … My artwork on Nature cover! #Paleoart #Sciart.”
Facebook post by Holtz, “Still my favorite personal quote from the whole #Ornithoscelida issue isn't even about dinosaurs: “Even though we have complete genomes and entire bodies, we still can't resolve if elephants are closer to sloths than to horses, for example.”
Facebook post by Holtz, “Rearrangement: study is dinosaur family tree in question https://t.co/qbhKQYmytq via @SPIEGELONLINE.”
The current Saurischia group would lose the theropods but add a strange, primitive group of two-legged carnivores called herrerasaurids.
Baron tweeted, “Paradigm-busting news.. a new #Nature study proposes theropods are closer to ornithischians than to saurodomorphs https://blogs.scientificamerican.com/tetrapod-zoology/ornithoscelida-rises-a-new-family-tree-for-dinosaurs/ …”
The analysis placed the earliest dinosaur at 242 to 247 million years ago, a small Tanzanian species called Nyasasaurus, soon to become the dominant land animals until an asteroid wiped them out 66 million years ago.
"Our results strongly suggest that the ancestral dinosaur was a quick, two-footed, generalist feeder that would have eaten a mix of plants and meat," Baron said.
Facebook post by Holtz, “Dinosaur: pedigree reformed - new pedigree for lizards-https://t.co/jk23KLN1ed.”
Baron’s tweet, “After 130 years, the dinosaur family tree gets dramatically redrawn, writes @edyong209.”
Holtz tweeted, “#EverythingYouKnowIsWrong (mabye).”
(Reporting by Asha Bajaj)
#Calgary Wildlife Rehabilitation Society, #CWRS, #AndreaHunt, #Calgary, #Canada, #Hare
Toronto, Mar 22 (Canadian-Media): Calgary Wildlife Rehabilitation Society (CWRS) had sent a message implying that if a hare is seen unattended, it should be left there as both the snowshoe and white-tailed prairie hares in the city of Calgary begin to breed, media reports said.
Hare Credit: Wikipedia
A post from the facebook account of CWRS states,
“Baby hares means spring is here! Remember, See a Hare, LEAVE IT THERE! Baby hares are born fully furred and able to hop within hours of birth (the hares in the photo below were born this week). The mother leaves her babies alone for long periods of time coming back only twice a day, at dawn and dusk, to feed them. This is normal and these animals do not need help! Please do not kidnap baby hares, they do much better with their mother. If you are unsure if a wild hare needs help please contact our wildlife hotline: 403-239-2488
#seeahareleaveitthere #hares #calgary#wildlife #yyc #calgarywildlife.”
According to CWRS officials, hares are born with a full coat of fur and with their eyes open.
They also can, added CWRS within a few hours of birth hop on their own and do not wear a scent.
CWRS officials said, it was normal for baby hares, known as leverets, to be left unattended for a long time under bushes or in long grass.
Mother hares usually return to feed their young ones twice a day.
When threatened, it is normal for a baby hare to freeze, said CWRS.
One should try to help the hares when they are visibly injured.
Executive director of CWRS, Andrea Hunt said that Unlike rabbits, hares don't like captivity.
(Reporting by Asha Bajaj)
#WellsGrayArea, #CentralB.C., #Canada, #NorthCascade, #UnitedStates #grizzlybears
Toronto, Mar 18 (IBNS): The Wells Gray area of central B.C.-- which housed 317 grizzlies in 2012, nearly one fourth of all the grizzly bears in North America -- along with a larger area in northwest Montana have been chosen by United States authorities for the possible sources from which grizzly bears can be reintroduced at The North Cascade area in U.S, media reports said.
grizzly bear: Wikipedia
The North Cascade once was populated by thousands of grizzly bears but overtime have become extinct and now had fewer than 10 and since 1996 even these bears could not be seen on the U.S. side of the border.
After assessing large remote wilderness habitat of the North Cascade area the U.S. federal Government said about 200 grizzlies could be accommodated in it.
"Grizzly bears are a wilderness icon. They have enormous benefits for ecosystems … and they're essentially a missing piece here," said Joe Scott of Conservation Northwest, a Washington-based environmental group that's been working on the issue for decades, CBCNews reports said.
A post by Kim Michels in Joe Scott’s facebook account reads, “After decades of research, the National Park Service, U.S. Fish and Wildlife Service and other agencies have released proposals to support recovery of this iconic species. This is welcome news, and a historic conservation opportunity. But just how do we restore these magnificent animals?
Follow the story of grizzly bear recovery in Montana’s Cabinet Mountains, through the lens of Ecologist and bear expert Chris Morgan. Grizzly recovery in the Cabinet Mountains, done through science and community involvement, could serve as a model for the North Cascades.
Learn more and help #SavetheCascadesGrizzly at northcascadesgrizzly.org”.
The proposal of U.S. federal agency to capture B.C. grizzly bears using baited traps, transport and deposit these by helicopter to their final remote destinations to Washington State was met with very favorably due to an online campaign by cartoonist, The Oatmeal.
A tweet by Herald in Joe Scott’s facebook account reads, “Popular web cartoonist The Oatmeal brought his new game "Bears vs. Babies" to Arlington. Fun! http://bit.ly/2lVjMjM “
The National Parks Service (NPS) said that this proposal of reintroduction of grizzly bears to the North Cascades ecosystem in Washington State was favored by more than 1000,000 people.
Upon the request byf the members of the public and local elected officials for an extension to the comment period, NPS and U.S. Fish and Wildlife Service (UFWS) decided to extend the public comment period through April 28, 2017.
"Because it's happening in a national park and because grizzly bears are something that people are passionate about [on both sides] ... it's not surprising that we have a large number of comments," said Denise Schultz of the North Cascades NPS, CBCNews reports said.
The agencies such as Conservation Northwest, the National Wildlife Federation, and The Oatmeal had been supporting the U.S. proposal to initially move 25 bears over the next five to 10 years, then monitor the behaviour and adaptability of those bears.
It was also decided that the source group selected for the grizzly bears eat the same kinds of food as the landlocked North Cascades. The agencies had also taken care that the bears were in stable condition and could survive after separation from the young bears.
Scott hoped that B.C. people would agree to supply a couple of bears over several years.
He also hoped that Canadians who lived around Wells Gray would help and support the U.S. with their efforts.
When CBCNews expressed interest to discuss the grizzly plan, the B.C. Ministry of Environment refused adding that they would have to wait to get an answer till the U.S. government had taken the decision on this issue.
There was no agreement at that time to move B.C. bears to Washington, Schultz of the NPS confirmed and added more discussion and negotiations remains to be done before any conclusion is reached, which can be early 2018.
(Reporting by Asha Bajaj)
Ottawa, Aug 30 (Canadian-Media): Scientists around the world have been puzzled for decades that elephants have low rate of cancer, reports published in the Journal Science said.
Because animal cells keep dividing over an organism’s life, and each division carries the risk of producing a cancerous mutation, it should follow that larger animals with longer life spans are at higher risk of developing cancer. Not for elephants, whose 5500-kilogram bodies have startlingly low rates of cancer, a fact that has puzzled scientists for decades. According to a study published yesterday in Cell Reports, researchers discovered that elephants have extra copies of two cancer-fighting genes: P53, which hunts for cells with miscopied DNA, and LIF6, which obliterates the mutated cells before they can form a tumor. When researchers checked the evolutionary record, they found that LIF6 became inactive in elephant DNA millions of years ago, and then mysteriously came back to life, The New York Times reports. The researchers hope to use the results to find new ways to treat cancer in humans.