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Jungle. Sarawak, Borneo.  (Image by Luke Price via Flickr

Effects of climate change on the inhabitants of Borneo’s tropical rainforests

As global temperatures rise, unique ecosystems within tropical rainforests need to adapt to the changes. A new study looked at several species’ activity at each hour at each location on the landscape and projected how the spatio-temporal habits might change in a warmer environment. Results predicted a negligible effect on large animals; but smaller animals, […]

Asthma inhaler (Image by NIAID via Flickr)

A third of Canadian adults recently diagnosed with asthma don’t have it

Asthma is often diagnosed purely on the patient’s self-reported symptoms and the physician’s observations, a recent study found. But 33% of adults recently diagnosed with the respiratory disease didn’t actually have active asthma, and over 90% of these patients were able to stop taking medication and remain safely off it for a year. The study […]

Two killer whales (Image by Kenneth Balcomb, Center for Whale Research)

The real reason why female killer whales go through menopause

Killer whales are one of only three species to survive long past their reproductive years. It was thought that the main reason for menopause in female whales was family collaboration, since older females play a crucial role in helping find food for the younger family members. But a new study shows that older females’ calves […]

Adult zebrafish behavior can change depending on the level of hypoxia exposed to as an embryo (Image by Thierry Marysael via Flickr)

Exposure to low oxygen levels as embryos shapes adult zebrafish behavior

  As a result of climate change, low-oxygen or hypoxic areas have spread to many fish habitats over the past few years. A new study attempts to understand the effect of the exposure to hypoxic conditions during embryo development in zebrafish on their behavior later in life. Researchers found that zebrafish that were exposed to […]

hyolith

Extinct shelled fossil finds its true niche

Hyoliths, extinct sea creatures from the Cambrian period known for their cone-shaped shell and unusual appendages, have long been mistaken for a type of mollusc. However, a recent discovery by a U of T undergraduate student revealed that hyoliths belong to a group called lophophorates. The main trait that defines living lophophorates, such as brachiopods […]

This is a photo of a hatchling Protoceratops andrewsi fossil from the Gobi Desert Ukhaa Tolgod, Mongolia. (Image by AMNH/M. Ellison)

Dinosaur eggs resemble those of reptiles more than birds

Birds are the closest living relatives of dinosaurs, which is why it was long assumed that dinosaur eggs developed similarly to avian embryos. But new research found that the incubation period for dinosaur embryos was approximately 3 to 6 months, which is closer to the development of reptile eggs. Researchers came to this conclusion after […]

fishing fish netting

INFOGRAPHIC | New climate target could bring in six million tons of fish annually

If countries are able to meet the Paris Agreement global warming target of 1.5 degrees Celsius, potential fish catches could increase by six million metric tons per year. Researchers found that for every degree decrease in global warming, potential fish catches could yield an annual increase by more than three million metric tons. According to […]

Satellite sensor data can be used to track slight colour changes in boreal forests (Image by Gord McKenna via Flickr CC BY ND NC 2.0)

Warmer temperatures and increased CO2 levels don’t stimulate tree growth

Warmer temperatures and higher levels of carbon dioxide associated with climate change were supposed to bode well for tree growth. But a recent study shows that this advantage isn’t seen in the trees of Canadian boreal forests. Researchers collected and analyzed tree-ring data and satellite images to determine how the changing temperatures and CO2 emissions […]

Unique Arctic Inuit adaptations to cold temperatures a gift from ancestors

Previous research has identified potential genes that help the Greenland Inuit generate heat from a specific type of body fat. A new study analyzed a large sample of genetic data to trace origins of these adaptations. The genomic data used in the study was collected from nearly 200 Greenlandic Inuits and compared to the 1000 […]

Are you a risk taker? Your brain structure might hold the answer

The older we get, the less likely we are to take risks – and this preference for familiar things may be caused by a change in our brain structures. A new study shows that risk aversion may be associated with an increase in grey matter in the right posterior parietal cortex. Researchers asked a group […]

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