To better understand the evolution of flowers, researchers from Montreal are harnessing photogrammetry – a technique commonly used by geographers to reconstruct landscape topography. This is the first time scientists have used the technique to study flowers.

The team, including researchers from McGill University, Université de Montréal, and the Montreal Botanical Garden, published the results of their work in the journal New Phytologist.

Many mammal species living in cold climates tend to have large bodies and short limbs to reduce heat loss – a general pattern known as Bergmann’s rule. However, bats are the exception to the rule, displaying small body sizes in both hot and cold regions. A McGill-led team of researchers is shedding light on this long-standing debate over bats’ body sizes and focus on why bats are seemingly non-conforming to ecogeographical patterns found in other mammals. Their findings offer a new method for investigating complex macroecology across bat species.

Wild populations must continuously adapt to environmental changes or risk extinction. For more than fifty years, scientists have described instances of “rapid evolution” in specific populations as their traits (phenotypes) change in response to varying stressors. For example, Spanish clover has developed a tolerance for copper from the mine tailings in which it grows, and the horn size of Alberta bighorn sheep has decreased due to trophy hunting.

Despite having bat-like wings, two small dinosaurs, Yi and Ambopteryx, struggled to fly, only managing to glide clumsily between the trees where they lived, according to a new study led by an international team of researchers, including McGill University Professor Hans Larsson. Unable to compete with other tree-dwelling dinosaurs and early birds, they went extinct after just a few million years.

Biologists now have a better idea of the origin of birds and the evolution of flight, two iconic events in the history of life on earth, thanks to work by a group of international scientists including a McGill professor. In updating the evolutionary tree, the team’s findings show some dinosaurs could fly before they evolved into birds, and many others were experimenting with powered flight.

Species adapt to their local climates, but how often they adapt to their local communities remains a mystery. To find answers, researchers at McGill University and the University of British Columbia examined over 125 studies testing local adaptation in over 100 species of plants and animals in an article published in The American Naturalist.

Tufted puffins regulate their body temperature thanks to their large bills, an evolutionary trait that might explain their capacity to fly for long periods in search for food.

In a new study published in the Journal of Experimental Biology, researchers from McGill University and the University of California, Davis, used thermal imaging cameras to measure heat dissipation off the bodies and beaks of wild tufted puffins in the minutes after flying.