Quirks and Quarks

In this episode of Quirks and Quarks, host Bob McDonald explores a wide range of scientific phenomena through listener questions. The discussion covers the physiological effects of spaceflight on vision, the unique growth histories that make every snowflake different, and the biological evolution of fruit shapes and honeybee anatomy. The episode also delves into the composition of household dust and its link to chemical exposure, the impact of the dinosaur extinction on mammalian evolution, and the mechanics of water level fluctuations in Lake Superior. Finally, the show examines the astronomical mysteries surrounding the tilted axis of Uranus and its planetary rings.

This episode explores diverse scientific breakthroughs, ranging from the microscale physics of human sweating and skin hydration to the cognitive abilities of 'gifted' dogs that learn object names by eavesdropping. The discussion also covers geophagy in Gibraltar macaques as a response to human junk food consumption. Additionally, the episode investigates the mechanics behind 'lip outs' in golf putting and the discovery of a blue jay-green jay hybrid through citizen science. Finally, it details new Bluetooth technology being used to track the incredible 4,500-kilometer migration of monarch butterflies via smartphone detection.

This episode explores diverse scientific discoveries, beginning with a 307-million-year-old fossil in Nova Scotia that suggests early animals transitioned to herbivory much sooner than previously thought. The discussion also covers the mechanics of elephant trunk whiskers and the use of ants to ferment yogurt in Bulgaria. Additionally, the episode examines the discovery of an ancient, hornless rhinoceros skeleton in the Canadian Arctic, which provides evidence for a North Atlantic land bridge. Finally, we look at Philip Heron's 'Think Like a Scientist' program, which teaches critical thinking and the scientific method to incarcerated individuals to help them process their experiences.