Tastes differ 鈥� even among North Atlantic killer whales
Killer whales (also known as orcas) are intelligent predators. While it鈥檚 known that killer whales in the Pacific Northwest exploit widely different food types, even within the same region, we know much less about the feeding habits of those found throughout the North Atlantic.
How different were galaxies in the early universe?
An array of 350 radio telescopes in the Karoo desert of South Africa is getting closer to detecting the 鈥渃osmic dawn鈥� 鈥� the era after the Big Bang when stars first ignited and galaxies began to bloom.
Cutting down on social media to improve teens and young adults鈥� body image鈥��
Teens in North America are spending several hours per day on screens, and there鈥檚 growing concern over how social media may affect their mental health.
What areas should Canada protect to save species at risk of extinction?鈥�
At the recent COP 15 conference in Montreal, Canada committed to protecting 30% of its land by 2030, but which areas are most crucial to protect for at-risk species such as the spotted turtles?
From sex education to online misinformation
香蕉视频 is pleased to announce the winners and runners-up of the 2023 Principal鈥檚 Prize for Public Engagement through Media. The Prize was created to recognize outstanding achievement among those who share their knowledge on a vast range of subjects with the public and the media.
Does immigration really increase crime?
Many people who oppose immigration say that it increases crime. But does immigration really affect crime? Studying a country whose proportion of migrants has tripled in less than ten years, researchers find immigration significantly impacts people鈥檚 perceptions of crime but has no effect on actual crime.
How the brain's 'internal compass' works
Scientists have gained new insights into the part of the brain that gives us a sense of direction, by tracking neural activity with the latest advances in brain imaging techniques. The findings shed light on how the brain orients itself in changing environments 鈥� and even the processes that can go wrong with degenerative diseases like dementia, that leave people feeling lost and confused.
Towards reducing biodiversity loss in fragmented habitats
When natural habitats are cleared to make way for cities, roads and agriculture, this often leaves behind 鈥渋slands鈥� of fragmented habitat that can place species at risk of extinction. Species are at risk when they find it hard to move among habitat patches to find resources and reproduce.
Fresh produce contaminated with toxic BPA-like chemicals found in food labels, study finds
Steps were taken in Canada to reduce the use of Bisphenol A (BPA), a toxic chemical linked to prostate and breast cancer, commonly found in plastics, the lining of food cans, water bottles, and paper receipts. But in many cases, it has been replaced with similar hormone disrupting chemicals, like Bisphenol S (BPS).
The first known visual acuity chart in Inuktitut, Cree, and Ojibwe
A large majority of Nunavik Inuit report Inuktitut as their first language. In their work in Puvirnituq, 香蕉视频 ophthalmologist Dr. Christian El-Hadad and his colleague Shaan Bhambra, a recent graduate of McGill鈥檚 medical school, noticed that many patients either read only, or mainly, Inuktitut. This made visual acuity testing using the standard Latin alphabet chart difficult for some patients.
Teaching hope during the climate crisis
Headlines about severe climate events can make the future seem bleak.
Genes shed light on why men and women experience different depression symptoms
Depression is widely reported to be more common in women than in men, with women twice as likely to receive a diagnosis than men.聽
World鈥檚 most comprehensive study on COVID-19 mental health
COVID-19 has taken a relatively limited toll on the mental health of most people around the globe, according to a paper published today in the BMJ by a 香蕉视频-led research team involving collaborators from McMaster University, the University of Toronto, and other institutions.
Working to break down barriers for Black scholars
Recent events, including the murder of George Floyd and the COVID-19 pandemic, have drawn global attention to the reality of inequities in health care, the justice system, and higher education that disadvantage Black people. Reports show Black scholars face more barriers as they move up the research career ladder.
Socioeconomic factors play a role in detection, transmission and treatment of HIV
Those living in unstable housing conditions, such as hostels or informal dwellings and those who had not completed post-secondary studies were more likely to contract HIV in South Africa, according to a聽new study from 香蕉视频.
