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What Did T. Rex Eat? Each Other.

By Guest PostOctober 20, 2010Sciencecanada, cannibalism, carnivore, dinosaurs, fossil, gregory erickson, john horner, largest terrestrial carnivores, majungatholus, mammal tooth, marks, museum, nick longrich, North America, paleontologists, philip currie, scavengers, t rex, tyrannosaurus rex, united states, yale researcher

T. rex was the only big carnivore in western North America 65 million years ago that was capable of making such large gouges. Image credit: Nicholas Longrich

It turns out that the undisputed king of the dinosaurs, Tyrannosaurus rex, didn’t just eat other dinosaurs but also each other. Paleontologists from the United States and Canada have found bite marks on the giants’ bones that were made by other T. rex, according to a new study published online Oct. 15 in the journal PLoS ONE.

While searching through dinosaur fossil collections for another study on dinosaur bones with mammal tooth marks, Yale researcher Nick Longrich discovered a bone with especially large gouges in them. Given the age and location of the fossil, the marks had to be made by T. rex, Longrich said. “They’re the kind of marks that any big carnivore could have made, but T. rex was the only big carnivore in western North America 65 million years ago.” (more…)

Up in Smoke: Quebec Prison Partial Smoking Ban is not Successful

By Guest PostOctober 9, 2010Culture, Generalbordeaux, canada, cigarette-based economy, maison tanguay, prison, quebec, quebec detention center, serge brochu, smoking ban, université de montréal

The partial smoking ban in Quebec prisons is leading to a slew of new problems according to an investigative study involving the Université de Montréal. Their findings, part of a report conducted by the Institut National de Santé Publique, show that the courtyard-only policy for smoking has not led to quitting but rather to tension in the prison and cigarette-based economy. (more…)

The Price of Popularity: Drug and Alcohol Consumption

By Guest PostSeptember 29, 20101 commentCulturealcohol, canada, consumption, drugs, emotional troubles, frank vitaro, frédéric brière, hard drugs, jean-sébastien fallu, marijuana, popularity, popularity and consumption, stéphane cantin, teenagers, university of oslo

The consumption of drugs and alcohol by teenagers is not just about rebellion or emotional troubles. It’s about being one of the cool kids, according to a study by led by researchers at the Université de Montréal. “Our study highlights a correlation between popularity and consumption,” says Jean-Sébastien Fallu, lead researcher and professor at the Université de Montréal’s School of Psychoeducation. “The teenagers we studied were well-accepted, very sensitive to social codes, and understood the compromises that it takes to be popular.”

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Pilot Ejected Moments Before the Crash

By ShamsJuly 25, 2010General, Weaponsairshow, bbc, brian bews, canada, cf-18

During an airshow, pilot saved his life by ejecting moments before the plane crashed.

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Between the Nightmare of the Gulf and the Magic of Solar Impulse

By PravdaJuly 18, 2010Economy, Sciencealberta, alternative, bp, canada, China, cost efficient, deepwater horizon, deforestation, deserts, electricity, energy, environmental disaster, fort mcmurray, gulf of mexico, largest oil reserve, oil, oil sands, saudi arabia, Scandinavia, solar impulse aircraft, solar plane, solar stoves, sun ray, tar sands, thermo conversion, tibet, tibetan women, tsedang, unicamp data

While the BP Deepwater Horizon well spits tens of thousands of barrels of oil offshore on the Gulf of Mexico, an environmental disaster of proportions never before imagined, a beautiful new kind of bird flies silently in the skies on its first test flight.

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‘Arctic Climate May be More Sensitive to Warming than Thought’

By Guest PostJuly 6, 2010Environmentanthropogenic greenhouse, Arctic, ashley ballantyne, atmospheric, beaver pond site, british columbia, canada, carbon dioxide, dara finney, ecosystem, ellesmere island, geology, natalia rybczynski, permineralization, pliocene, strathcona fiord, vancouver

A new study shows the Arctic climate system may be more sensitive to greenhouse warming than previously thought, and that current levels of Earth’s atmospheric carbon dioxide may be high enough to bring about significant, irreversible shifts in Arctic ecosystems.

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UN Predicts Global Rise of Food Prices

By Guest PostJune 27, 20103 commentsEconomyafrica, agricultural products, agronews, asian farmers, biofuel, brazil, bric, canada, Chicago, China, coarse grains, dairy products, developing countries, eastern europe, fao, food and agriculture organization, food colonization, food consumption, grain traders, India, oecd, organization for economic cooperation and development, russia, the philippines, ukraine, un, united states, us midwest, vitally salnik, Wall Street Journal, western europe, wheat

In the next ten years, prices for agricultural products in the world will grow in real terms by 15-40%, say experts from the Organization for Economic Cooperation and Development and the Food and Agriculture Organization of the UN. The reason for it is the increasing demand for food in developing countries and production of biofuels.

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Dinosaur-chewing mammals leave behind oldest known tooth marks

By Guest PostJune 24, 2010Scienceadrosaurid, alberta, aquatic reptile, canada, ceratopsid, champsosaurus, cleveland museum of natural history, deer, dinosaur, dinosaur-chewing mammals, Epoch, femur bone, journal paleontology, late cretaceous, mammalian tooth marks, marsupial, michael j. ryan, multituberculates, nicholas longrich, ornithischian, paleontologists, royal tyrrell museum of palaeontology, university of alberta laboratory for vertebrate palaeon, yale university

New Haven, Conn. — Paleontologists have discovered the oldest mammalian tooth marks yet on the bones of ancient animals, including several large dinosaurs. They report their findings in a paper published online June 16 in the journal Paleontology.

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