Study examines hockey players' brains during games
Vancouver Watch
A new study is shedding light on differences in brain activity between hockey players in various positions.
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CTV News
41 minutes ago
- CTV News
Wildfire smoke prompts air quality warnings in Manitoba
Trees burned by wildfires in northern Manitoba are shown during a helicopter tour in the surrounding area of Flin Flon, Man., on Thursday, June 12, 2025. THE CANADIAN PRESS/Mike Deal-Pool Several Manitoba communities are under air quality advisories Saturday due to wildfire smoke. Environment and Climate Change Canada (ECCC) issued warnings for Berens River, Bloodvein and Little Grand Rapids because the smoke is causing poor air quality and reduced visibility. ECCC has also issued air quality statements for areas including Winnipeg, Brandon and the Interlake. 'High levels of air pollution have developed due to smoke from forest fires,' Environment Canada warned. 'Smoke plumes moving over southern Manitoba from forest fires in northwest Ontario have resulted in deteriorated air quality in the area.' The weather agency said widespread improvement is expected by Saturday evening. ECCC air quality Manitoba Environment and Climate Change Canada issued air quality warnings and statements for parts of Manitoba on June 21, 2025. ECCC warns that smoke puts everyone's health at risk, but especially those over the age of 65, pregnant people, infants and young kids, those with existing illnesses, and people who work outside. To stay safe, the weather agency recommends limiting time outdoors, keeping windows and doors closed, and using a good quality air filter in your ventilation system. For those who must spend time outside, it's recommended that you wear a well-fitting respirator-type mask. Smoky conditions can lead to symptoms such as eye, nose and throat irritation, as well as a headache or mild cough. More serious symptoms including wheezing, chest pains or severe cough. According to the provincial wildfire service, there were 22 fires burning in Manitoba with 6 deemed as 'out of control.'
CBC
2 hours ago
- CBC
Researchers discover ancient predatory, fanged fish that swam in Nova Scotia waters
Researchers have discovered a new species of ancient fish with hooked front fangs that made them a fearsome and effective predator. A paper published in the Journal of Vertebrate Paleontology this week says the long, curved jaw of the animal sheds light on how fish were evolving smaller, front teeth that acted like fishing hooks, about 350 million years ago. Meanwhile, the centimetre-long back fangs were used to chew the catch before digestion into a body that may have been almost a metre long. They hunted for prey in the inland waters of Nova Scotia, in what was likely a vast inland lake. Lead author Conrad Wilson, a doctoral candidate in paleontology at Carleton University in Ottawa, said in an interview Friday that the fish has been named Sphyragnathus tyche, with the first phrase meaning "hammer jaw." "I would say it's a fairly fearsome looking fish. If its mouth is open, you would see those fangs in the jaw," he said But the fossil is also significant for the clues it offers to the evolution of ray-finned fish — a huge and diverse vertebrate group that occupies a wide range of aquatic and semi-aquatic environments around the globe. "These fish were the last major group of vertebrates to be identified and we still have big gaps in our knowledge about their early evolution," Wilson said, who published his paper with Chris Mansky, a fossil researcher at the Blue Beach Fossil Museum in Hantsport, N.S., and Jason Anderson, a professor of anatomy in the veterinary faculty at the University of Calgary. "The fossils are telling us about what the fish existing right after a mass extinction looked like," said Wilson, referring to the transition from the Devonian to the Carboniferous periods. Wilson said paleontologists have wondered how ray-finned fish recovered from the extinction period as other groups of fish, such as the heavily armed category referred to as placoderms, were disappearing. "The beach where this fossil was discovered tells us ... this is a group of animals that is doing well, pretty quickly, after a mass extinction," he said. The paper theorizes that the feeding methods of the evolving teeth may have played a role, creating an evolutionary advantage for the species. Wilson noted "that particular feature of the curved and pointy fang at the front and processing fangs at the back became a feature of many species in times to come." The area where the fossil was found — at Blue Beach on the Minas Basin, about 90 kilometres north of Halifax — was believed to be part of a vast freshwater lake not far from the ocean. The research team's paper credits Sonja Wood, former director of the Blue Beach Fossil Museum, for finding the fossilized jaw by urging Mansky to check along a creek that flowed onto the beach. Wood, who died last year, was in a wheelchair and had urged her colleague to search the area. "She had a good feeling about what could be found ... and she said he should go and have a look," said Wilson. "He went down and sure enough it [the jaw fossil] was sitting right there," he said, adding that Mansky managed to recover the fossil before a storm rolled through that night. Wilson said more discoveries are possible as examination of the fossils from the Blue Beach area continues. "We have lots of different anatomies that simply haven't been described yet. And we'll be working on that in a paper that's coming up in a few months," he said.
CTV News
2 hours ago
- CTV News
Heat warnings in effect across southern Ontario
A kid runs through water at the Breithaupt Park Splash Pad in Kitchener. (Colton Wiens/CTV Kitchener) (Aug. 7, 2022) A potentially dangerous heatwave is expected to hit a large swatch of southern Ontario. Environment Canada has issued heat warnings as the first significant heat event of the season is expected to get underway Sunday afternoon and continue into the week. According to a release from the weather office, daytime highs will reach 31 to 36 degrees Celsius, but feel closer to 40 or 45 with the humidity. There won't be much relief at night either as overnight lows will hover between 21 and 25. A cold front is expected to push through Waterloo Region late Tuesday, but Environment Canada warns it is not clear how far south the front will reach. If it misses the region, the heat could continue into Wednesday. Signs of heat exhaustion include headache, nausea, dizziness, thirst, dark urine and intense fatigue. Heat stroke can include red, hot skin, dizziness, nausea, confusion and a change in consciousness. Anyone experiencing heat stroke should call 911 immediately and seek medical help. A list of cooling centres, pools and splashpads is available online to help keep residents cool until the heat dissipates.
