Results of an extensive literature review show that lethal heatwaves are more common than previously thought, and suggest that the extreme heat conditions will continue to arise even if greenhouse gas emissions are drastically reduced in the future. Researchers found over 1,900 cases of locations worldwide since 1980 where heatwaves have killed people, and identified […]
Older and wiser: with age, female elk learn to avoid hunters 
A new study suggests female elk wise up to better hiding behaviors with age, in order to keep safe from hunters. Over the period of four years, researchers tracked 49 female elk, ranging between one and 18 years old in BC and Alberta. Using GPS trackers, scientists collected data, such as distance traveled with time, […]
Lower mercury levels in polar bears could be a sign of climate-related diet shift
A drop in mercury levels was discovered among southern Beaufort Sea polar bears, something the researchers say may suggest a changing diet and a shift in foraging habits. Scientists collected hair samples from Beaufort polar bears over a seven-year period, and measured the mercury concentration in these samples. Results showed a 13% drop in mercury […]
New type of paint produces clean energy out of water vapor
Scientists have found a way to produce clean energy out of thin air—as long as it’s got some moisture in it—using a new type of paint. The paint is made up of synthetic molybdenum-sulphide, which helps it absorb solar energy and collect moisture. The compound catalyzes the splitting of water vapor into oxygen and hydrogen. […]
Scientists may have found a way to tan without damaging the skin with UV radiation
Researchers have developed a way to increase skin pigmentation without damaging it. These results come out of a follow-up experiment to an earlier study, where a team of scientists successfully induced tanning in a mouse species that normally does not produce the protective form of the pigment melanin. This was accomplished by introducing a new […]
Recipe for a comeback: predictive characteristics for replenishing depleted marine fish species
What does it take for a depleted fish species to make a comeback? A group of researchers reviewed abundance trends for over 50 populations of marine fish in attempts to determine what, if any, characteristics are common among species that have successfully recovered after overfishing. Their results suggest that recovery is related to a combination […]
Female Steller sea lions breed near their birthplace
Steller sea lions keep their family close and their breeding spots even closer, as a new study suggests that females choose to breed near the rookery where they themselves were born. Researchers gathered tracker data from 269 female sea lions over the course of 14 years to see how often the sea lions switched rookeries, […]
Cow’s milk helps children grow taller, compared to non-cow milk
New research shows that drinking a cup of cow’s milk every day helps children grow taller. According to the study, for each daily cup of cow’s milk they drank, children were 0.2 centimetres taller than average for their age. Conversely, for every cup of non-cow’s milk, kids were 0.4 centimetres shorter than average. The study […]
Better membrane model can help deliver drugs through the blood-brain barrier
Selective membrane that protects the central nervous system from circulating blood, commonly known as the blood-brain barrier, has been notoriously hard to penetrate — for a good reason, as it protects cells of the central nervous system from contamination. But breaching this barrier is also essential for delivering medicine to treat illnesses affecting the CNS […]
Reducing ambiguity in the Paris Agreement can help better estimate its benefits
Estimates in greenhouse gas reductions on the terms of the Paris Agreement can be improved by 10%, if participating countries make a commitment to submit their climate plans every five years. Paris Agreement aims to limit global warming to below two degrees Celsius by 2030. However, the current result estimates vary by as much as […]
Scientists solved the mystery of the mass Allosaurus grave
The Cleveland-Lloyd dinosaur bone bed has been a puzzle for paleontologists for many years. It’s home to the densest collection of Jurassic era dinosaur fossils, which includes numerous Allosaurus fossils. Since the bone bed’s discovery in the 1920s, numerous hypotheses have been proposed to explain its origin—including theories of a mass poisoning event, drought, or even dinosaurs […]
Irregular mealtimes reset one of our biological body clocks
One of the major biological cycles of the human body is influenced by mealtimes, a new study suggests. The human body runs on a roughly 24-hour cycle, controlled by a “master” clock in the brain and peripheral clocks in other parts of the body, which are synchronized with external cues, including light and food intake. […]
The brain chemistry of voles’ everlasting love
Voles are famous examples of social monogamy, a rare phenomenon in the animal kingdom. A recent study set to find out if there’s anything unique about these loving rodents’ brain connections that helps them form such strong bonds with their mate. Researchers specifically focused on the corticostriatal circuit in the brain, which is known to control the animals’ […]
Duck, duck, goose: How evolution shaped waterfowl beaks
A new study provides the most comprehensive look at the evolution of beaks in waterfowl to date. Following Charles Darwin’s famous finch study, present research suggests that diet shaped the beaks of geese and ducks. Study author studied 3D form of the beaks of 136 specimens of waterfowl, covering 51 species and 46 genera, including […]
Hawaiian corals at risk of extinction due to climate change, despite protection
Researchers have documented a third global coral bleaching event, which ended just in 2016, at the Hanauma Bay Nature Preserve (HBNP) on the island of O’ahu, Hawai’i. They found that 47% of reef flat corals at HBNP bleached overall and 9.8% of corals died at Hanauma Bay during this time. This means that, despite their […]
Older mothers more likely to experience complications during childbirth
Risk of life-threatening complications during childbirth — such as as renal failure, obstetric shock, and amniotic fluid embolism — increases with mother’s age, according to a new study. Researchers examined data from single-infant births to women of various ages over the period of 10 years. After adjusting for confounding factors, such as parity, body mass […]
