Canadian scientists have announced the discovery of a fossil preserved with its last meal, a rare finding that sheds light on what the ancient ecosystem may have looked like.
There have only been 20 other cases where a carnivorous dinosaur's last meal had been preserved. On Tuesday, a team of researchers from Canada, the U.S., the U.K. and China describing their discovery of a mammal foot inside the ribcage of a microraptor.
鈥淎t first, I couldn鈥檛 believe it. There was a tiny rodent-like mammal foot about a centimetre long perfectly preserved inside a microraptor skeleton. These finds are the only solid evidence we have about the food consumption of these long extinct animals 鈥 and they are exceptionally rare,鈥 study co-author Hans Larsson of McGill University .
Microraptors were feathered dinosaurs that lived in the early cretaceous period around 120 to 125 million years ago. They were about the size of a crow and the first specimens were discovered in China in the early 2000s.
鈥淭he great thing is that, like your housecat which was about the same size, microraptor would have been an easy animal to live with but a terror if it got out as it would hunt everything from the birds at your feeder to the mice in your hedge or the fish in your pond," Alex Dececchi of Mount Marty College, another co-author of the study, .
It's unclear which species of mammal the foot once belonged to. The authors note that its digits were slender, similar to the rodent-like eomaia and sinodelphys species that lived around that period. However, the bone proportions suggest that this creature may have been a land-dweller, unlike the tree-climbing eomaia and sinodelphys.
It's also unclear whether this microraptor's last meal was scavenged or hunted. While the size of the mammal, which was about as big as a mouse, suggests that it might have been prey, the researchers note that it's quite common for carnivores like microraptors to engage in both scavenging and predation.
Previous research looking into the microraptor has already established that the creature's diet likely included birds, lizards and fish.
"This new find adds a small mammal to their diet, suggesting these dinosaurs were opportunistic and not picky eaters,鈥 Larsson said.
The researchers also note this discovery adds that the evidence that the microraptor was a generalist carnivore. Generalist carnivores, such as foxes and crows, play an important stabilizing role in ecosystems as they can eat a wide variety of species depending on which populations are more abundant.
鈥淜nowing that microraptor was a generalist carnivore puts a new perspective on how ancient ecosystems may have worked and a possible insight into the success of these small, feathered dinosaurs,鈥 Larsson said.
Prime Minister Justin Trudeau's caucus is meeting this morning for its weekly gathering, this time with much higher stakes, as an evolving number of MPs is expected to confront the leader and ask him to step down.
The Bank of Canada made a sizable cut to its key lending rate Wednesday from 4.25 per cent to 3.75 per cent as the global economy continues to expand. The half percentage point cut is the fourth rate cut in a row by the central bank as inflation dropped from 2.7 per cent in June to 1.6 per cent in September.
Gisele Pelicot, the 72-year-old victim of mass rape whose ordeal has shocked the world, told a trial in southern France on Wednesday that she was determined that making her case public should help other women and change society.
A recall has been issued for certain clothing items sold at Giant Tiger stores over high levels of lead, according to a notice published by Health Canada Tuesday.
A new report suggests that Canadians' exposure to a radioactive gas is increasing, putting millions of people at a higher risk of developing lung cancer.
The president and CEO of New Brunswick-based Covered Bridge Potato Chips is taking an 鈥渆xtended leave of absence鈥 after being charged with domestic violence this past weekend.
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In part two of a four-part investigation into the seedy underbelly of the lucrative clothing donation bin industry, CTV W5 uses trackers tp reveal a for-profit operation masquerading as a charity.
Police have confirmed the body of an employee who died at a Walmart in Halifax over the weekend was found in a walk-in oven.
The Bank of Canada made a sizable cut to its key lending rate Wednesday from 4.25 per cent to 3.75 per cent as the global economy continues to expand. The half percentage point cut is the fourth rate cut in a row by the central bank as inflation dropped from 2.7 per cent in June to 1.6 per cent in September.
A new report suggests that Canadians' exposure to a radioactive gas is increasing, putting millions of people at a higher risk of developing lung cancer.
A recall has been issued for certain clothing items sold at Giant Tiger stores over high levels of lead, according to a notice published by Health Canada Tuesday.
An oil salvage operation is underway on the fragile wreckage of a U.S. army transport ship that sank almost 80 years ago off coastal British Columbia in a race to head off an eruption of thousands of litres of oil that a coast guard official says is "near imminent."
Ellen Francis says she and her family were having a great time at one of Cuba's famously stunning beaches and exploring the popular tourist town of Varadero when the situation turned into something like a scary movie.
British Columbia's highest court has weighed in on a dispute over an inflatable hot tub a couple set up on their condo's patio 鈥 potentially bringing a close to the years-long conflict.
Donald Trump's longest-serving chief of staff is warning that the Republican presidential nominee meets the definition of a fascist and that while in office, Trump suggested that Nazi leader Adolf Hitler 'did some good things.'
A Polish radio station has triggered controversy after dismissing its journalists and relaunching this week with AI-generated 'presenters.'
French politicians are deeply divided over the fate of lawmaker Andy Kerbrat, caught last week buying synthetic drugs, and whether his breaking the law should push him to resign.
Ukraine will receive US$50 billion in loans, backed by frozen Russian assets, from Group of Seven allies, the White House said Wednesday. Distribution of the money will begin by year's end, according to American officials.
Assailants set off explosives and opened fire in an attack Wednesday on the premises of the Turkish state-run aerospace and defence company TUSAS, killing four people and wounding several, Turkish President Recep Tayyip Erdogan said.
Three people were found dead Wednesday and four others were hospitalized after an 'unexplained' incident at a care home in southern England, police said.
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Prime Minister Justin Trudeau says he doesn't think his leadership is in danger, one day before a highly anticipated Liberal caucus meeting where his future at the helm of the Liberal party is expected to be up for discussion.
A debate has ground work in the House of Commons to a halt for weeks, but a new poll suggests that most Canadians are not even aware it's happening.
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A quick shake of the head after a hard hit could signal that a person has a concussion, a new study suggests, based on the experiences of young athletes.
A recall has been issued for certain clothing items sold at Giant Tiger stores over high levels of lead, according to a notice published by Health Canada Tuesday.
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Harvey Weinstein's retrial on sex crimes charges in Manhattan won't start until at least next year 鈥 and his lawyer plans to hire a private investigator to look into a new allegation against the movie mogul that will now be part of the case.
An initial toxicology report for ex-One Direction singer Liam Payne, who died last week after falling from a third-floor hotel balcony in Buenos Aires, showed that he had cocaine in his system after his death, an Argentine official said.
Taylor Swift fans from far and wide will head to Toronto next month to see the superstar perform a series of six sold out shows at the Rogers Centre.
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Scottie Barnes and the Toronto Raptors kick off the new NBA season tonight as they host the Cleveland Cavaliers.
Goaltender Connor Hellebuyck, last season's Vezina Trophy winner, recorded 27 saves to spark the undefeated Winnipeg Jets to a 3-2 victory over the St. Louis Blues on Tuesday night.
Danton Heinen scored two of Vancouver's four first-period goals, and the Canucks beat the Chicago Blackhawks 6-3 on Tuesday night for their third straight win.
An increased risk of fire has prompted the recall of thousands of Honda hybrid vehicles in Canada.
A senior executive for Volkswagen in China has been deported for allegedly using cocaine and marijuana while on vacation in Thailand, according to Chinese authorities and German media reports.
The U.S. government's road safety agency is investigating Tesla's 'Full Self-Driving' system after getting reports of crashes in low-visibility conditions, including one that killed a pedestrian.
A meteor lit up our region's sky last night 鈥 with a large fireball shooting across the horizon over Lake Erie at around 7:00 p.m.
Residents of Ottawa's Rideauview neighbourhood say an aggressive wild turkey has become a problem.
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Hortense Anglin was the oldest graduate to make her way across the platform at York University's Fall Convocation ceremony this week. At the age of 87, she graduated with an Honours degree in Religious Studies.
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The federal government says it can鈥檛 wait any longer for Ontario to end encampments in its cities and will offer money directly to municipalities, including Toronto, to fix the problem.
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Ten things to do with friends or family this weekend.
The Bank of Canada made a sizable cut to its key lending rate Wednesday from 4.25 per cent to 3.75 per cent as the global economy continues to expand. The half percentage point cut is the fourth rate cut in a row by the central bank as inflation dropped from 2.7 per cent in June to 1.6 per cent in September.
Popular Kanata restaurant D'Arcy McGee's has suddenly closed its doors. In a post on Facebook Tuesday night, D'Arcy McGee's said, "We will sadly be closing our doors."
An Orl茅ans property that once belonged to a religious order is now in the City of Ottawa's hands.
Montreal Mayor Valerie Plante will not be seeking reelection.
As the case of the Bedford school, where teachers created a climate of terror, has brought the debate on secularism to the fore, Quebec Solidaire (QS) is joining the Parti Qu茅b茅cois (PQ) in calling for an end to the funding of religious schools in the province.
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Cool mornings and mild afternoons through the rest of this week in Edmonton and area.
The Bank of Canada made a sizable cut to its key lending rate Wednesday from 4.25 per cent to 3.75 per cent as the global economy continues to expand. The half percentage point cut is the fourth rate cut in a row by the central bank as inflation dropped from 2.7 per cent in June to 1.6 per cent in September.
The Nova Scotia government says it plans to reduce the province's harmonized sales tax (HST) rate by one percentage point next year.
The Southwest Nova RCMP Major Crime Unit has taken over the investigation into a fatal shooting in Kingston, N.S.
Police have confirmed the body of an employee who died at a Walmart in Halifax over the weekend was found in a walk-in oven.
The Manitoba government is looking to add more liquor outlets inside food and grocery stores.
An armed man was restrained by customers after he attempted to rob a Winnipeg restaurant on Monday.
It's being hailed as a sizable cut to the Bank of Canada's interest rate and the largest since the central bank began slashing in the summer.
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Police have confirmed the body of an employee who died at a Walmart in Halifax over the weekend was found in a walk-in oven.
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Green Leader Sonia Furstenau is set to meet the media for the first time since British Columbia's indecisive election on Saturday, amid speculation about a possible minority government.
Mounties in British Columbia say a second person has been found dead after two vehicles ended up in a river on Vancouver Island when a road washed out amid torrential rains over the weekend.
Dave Lindsey began growing giant pumpkins to bring a bit of magic to his grandkids' Halloween.
A U.S. District Court judge in Montana has sentenced a 27-year-old man from Kelowna, B.C., to 18 months in prison for using fake names to buy guns with the aim of selling them in Canada.
Nearly two years after a man was stabbed to death in downtown Kelowna, RCMP have made an arrest in the case.
A proposed coal mine 鈥 not tourism 鈥 is critical in revitalizing southwestern Alberta communities along the edge of the Rockies, a group in favour of a controversial project maintains.
Alberta Premier Danielle Smith says she's waiting for NDP Leader Naheed Nenshi to declare where he intends to run for office before she calls a byelection in Lethbridge.
The health of honeybees will be the focus of a presentation at the University of Lethbridge on Wednesday evening.
The union representing the fire rangers with the Ministry of Natural Resources says money won鈥檛 fix the systemic problems in the workplace.
Rallies by a group called Voices Against Violence took place across the country on Monday, including Sault Ste. Marie.
An Indigenous group in northwestern Ontario shut down the highway for a couple of hours Monday morning in protest after ancestral remains were found at a construction site.
Police in western Newfoundland say a 77-year-old man visiting the province from Kansas is missing after a fire at a hotel in Deer Lake, N.L.
At 2 p.m. on Thursday, the scene at the Lions Club in Clarenville, N.L., rivalled any rowdy St. John's bar that thumps with music late on a weekend night.
A Newfoundland scientist known for identifying a gelatinous, rancid mass that washed up on the island's shores decades ago is hoping to get his hands on a slice of the strange white globs appearing on the province's beaches.
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