Another detail emerges on polar bear behaviour — some are hoarders
Scientists have always thought of polar bears as fast eaters, chowing down on the choicest cuts of seal, walrus and whale right after they’ve killed it. But that’s not always the case, as some decide to hoard their kills for later, similar to a behaviour common among their grizzly bear cousins. That's the conclusion from a new paper co-authored by Ian Stirling at the University of Alberta. It was published this week in Arctic Science and lists nearly 20 different sightings of polar bears hoarding their kills over the past 30 years.That's something Stirling hasn't seen or heard of the bears doing in his 49 years of studying them.
Scientists have been finding amber specimens from Myanmar holding fossilized insects and plants for some time, but the discovery of vertebrate fossils inside amber is The piece of amber described in the study was originally privately owned and was later donated to the museum of the Dexu Institute of
EDMONTON, Alberta , Jan. 27 (UPI) -- The previous oldest snake fossils were recovered from 100-million-year-old sediments. But new findings -- a series of newly identified snake skulls -- set the evolutionary origins of the modern snake back an extra 70 million years, suggesting that between
A team of researchers, including an expert from the, say a 100-million-year-old cheekbone fossil found in Argentina is providing critical insight into the evolution of snakes.
The results of the international research were, show that ancient snakes had a cheekbone — also known as a jugal bone — which may not mean much to many, but to the scientists involved, it reveals a key detail about snake evolution.
Opinion: A Quebecer's letter to his Western cousins
Dear Alberta and Saskatchewan kin, Here in Montreal, I can feel your frustration. It’s intense enough to roll over the prairies and across the Great Lakes. You feel unheeded and rejected. You’re angry enough to want to knock the bejesus out of the rest of us. “Can’t they see that we’re suffering? Can’t they see that jobs are disappearing, office towers are emptying out, homes are being lost and families are facing uncertainty? Can’t they see that none of this has to be if only we can get our product to market?” Many of you are thinking that enough is enough and that it’s time to cut your ties with the rest of the family.
The fossil of a 43-million-year-old whale with four legs, webbed feet and hooves has been discovered in Peru. Researchers believe the discovery could shed light on the evolution of the whale and how it spread. "This is the most complete specimen ever found for a four-legged whale outside of India and
Ancient fossil appears to be an early snake , but scientific debate about its relations—and the relic itself—are stewing. Scientists have described what they say is the first known fossil of a four-legged snake . The team’s scientific interpretation may be the least controversial aspect of the discovery , which The front part of the fossil —which appears to be complete and has all bones in their original
"In the past, the fossil record of snakes has been pretty poor," said, a biological science professor and paleontologist based at the University of Alberta. "Lizards have more bones in the cheek region... than a typical modern snake does.
"It makes a difference when you're tracking the evolution of the ability to eat large prey, if you can accurately follow which bones were lost," said Caldwell.
The discovery is the culmination of years of research and a collaboration between theand in Buenos Aires, Argentina.
"Our findings support the idea that the ancestors of modern snakes were big-bodied and big-mouthed — instead of small burrowing forms as previously thought," said Fernando Garberoglio, the Argentina-based lead author for the study.
Swann: Stop the blame game; Alberta's plight is our own doing
After 11 years as an MLA in the Alberta legislature under the Progressive Conservative government I feel compelled to challenge the blame now levelled at Ottawa for our difficult economic state. The current Alberta Conservatives have ramped up the tiresome strategy as old as Alberta; when in distress — blame the feds for our economic woes. And denounce the efforts for the TMX pipeline and policies for a new energy future, beyond carbon. The blame game by the UCP government also feeds climate change denial in spite of the overwhelming science and the growing global human suffering.
Part of HuffPost Science . ©2019 Verizon Media. The discovery of what's thought to be the first four-legged snake fossil is giving scientists a “I think the specimen is important, but I do not know what it is,” biological scientist Michael Caldwell of the University of Alberta told National Geographic.
Image. The skeletal remains of a new species of prehistoric snake preserved in amber found in Myanmar.Credit Ming Bai, Chinese Academy of Sciences . In 2016, Lida Xing was combing the amber markets of Myanmar when a merchant enticed him over to his booth with what he said was the skin of
The bone itself was found by Garberoglio several years ago in the Northern Patagonia region of Argentina. The region itself is a "treasure trove" of snake fossils, so Caldwell, one of the few snake scholars in the world, was called in as an adviser.
"I've been back and forth to Buenos Aires many times and I've brought Fernando here to the University of Alberta probably three or four times... in order to mentor him and work with him on this material," said Caldwell.
The reason that an Edmonton scientist had to go all the way to Argentina for this discovery is because while Alberta is fossil-rich, snake remains are generally not found in the region.
"We do have snakes here, but we don't have the right preservational environment," said Caldwell. "Most of these big dinosaur bearing rocks [in Alberta] are all river-deposited sediments, and rivers move things around.
"Snakes have got lots of tiny vertebra... and very delicate skulls."
Caldwell said that he was honoured to be involved in the research.
"Being able to reach out and connect with students and science problems around the world... it's made a complete difference in my professional career," said Caldwell.
Student's dino skull discovery defies scientists' assumptions: U of A .
A dino skull discovered by a University of Alberta graduate student in 2015 is upending assumptions about the facial structure of dinosaurs. Scott Persons, now a professor and museum curator at the College of Charleston in South Carolina, found the well-preserved Styracosaurus skull in the badlands northwest of Alberta’s Dinosaur Provincial Park. Scott Persons, now a professor and museum curator at the College of Charleston in South Carolina, found the well-preserved Styracosaurus skull in the badlands northwest of Alberta’s Dinosaur Provincial Park. The spiky dinosaur, whose name means “spiked lizard,” was over five metres and had a fan of long horns.