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New underwater cameras reveal the secret life of dolphins

A world-first study testing new underwater cameras on wild dolphins has given researchers the best view yet into their hidden marine world. A research team including experts from the University of Sydney’s Charles Perkins Centre and the University of Alaska Southeast trialled the custom-made non-invasive cameras to capture and analyse more than 535 minutes of […]

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Dinosaur species had teeth when they are babies, lost them when they grew

Researchers have discovered that a species of dinosaur, Limusaurus inextricabilis, lost its teeth in adolescence and did not grow another set as adults. The finding, published today in Current Biology, is a radical change in anatomy during a lifespan and may help to explain why birds have beaks but no teeth. The research team studied […]

Discovery of new bacteria complicates problem with salmon poisoning in dogs

Researchers at Oregon State University have identified for the first time another bacterium that can cause symptoms similar to “salmon poisoning” in dogs — and may complicate the efforts of Pacific Northwest pet owners to keep their dogs protected and healthy. The Pacific Northwest, from northern California to central Washington, is the only region of […]

Mobs are, sometimes, good

Submitting to mob mentality is always a risky endeavor, for humans or hyenas. A new Michigan State University study focusing on the latter, though, shows that when it comes to battling for food, mobbing can be beneficial. The findings, featured in the journal Current Zoology, fully describe for the first time, cooperative behavior during fights […]

Personality tests for fish could help boost reproduction rates

Aquaculture experts from the University of Stirling and the Institute for Food and Agricultural Research and Technology (IRTA) in Catalonia, have found the way fish, Senegalese sole, cope with stress is determined by their personality and remains consistent regardless of the situation they are in. Experts hope the first study to test stress copying styles […]

Changing views of evolutionary factors at work on earliest mammals

Using 3D-printed replicas of 200-million-year-old mammal teeth and polymers that mimic insect prey, scientists at the University of Massachusetts Amherst this week provide the first laboratory-tested evidence that the ability for teeth to damage prey is a more significant factor driving evolutionary changes in tooth shape than either bite force or the animal’s energy expenditure. […]

Dinosaur discovery casts light on final flurry of animals’ evolution

A dinosaur fossil that almost went undiscovered is giving scientists valuable clues about a family of creatures that flourished just before the mass extinction. The bird-like species, found at a building site in southern China and nicknamed the ‘Mud Dragon’, was preserved almost intact, lying on its front with its wings and neck outstretched. Scientists […]

Canadian and European boreal forests differ but neither is immune to climate change

Rudy Boonstra has been doing field research in Canada’s north for more than 40 years. Working mostly out of the Arctic Institute’s Kluane Lake Research Station in Yukon, the U of T Scarborough Biology Professor has become intimately familiar with Canada’s vast and unique boreal forest ecosystem. But it was during a trip to Finland […]

Protozoan parasite increases risk of colitis, study reveals

Researchers from the University of Toronto have discovered that mice infected with the common gut parasite Tritrichomonas muris are at an increased risk of developing inflammatory colitis. Their findings, which have been published online in The Journal of Experimental Medicine, expand the type of gut-resident microorganism that can affect the health of their host and […]