CrowdScience

Catherine Ivy, an assistant professor at the University of Saskatchewan, studies how birds like bar-headed geese manage long migrations at high altitudes. Lucy Hawkes, an associate professor at the University of Exeter, explores the unique physiology that allows these geese to fly over the Himalayas. They discuss adaptations such as super-powered hearts and lungs, the challenges of thinner air and scarcity of oxygen, and share fascinating insights from their groundbreaking research on avian altitude capabilities.

Joining the discussion is Professor Eileen Wall, head of research at SRUC, who sheds light on the carbon footprints of livestock and pets. The conversation reveals that cows contribute significantly to greenhouse gas emissions, stirring debate over their impact versus that of household pets. Surprising insights emerge about the carbon costs of dog diets and the destructive role of pests like the Ips typographus beetle, capable of upsetting forest ecosystems. The talk also highlights innovative projects aimed at achieving zero carbon beef production, showcasing efforts to mitigate environmental damage.

Kevin Verstrepen, a world expert on yeast and professor at the University of Leuven, explores the fascinating world of non-alcoholic beer. He discusses innovative yeast strains that brew without alcohol while retaining flavor. The conversation touches on the health implications of drinking, revealing that even moderate alcohol consumption poses risks. Verstrepen also dives into aroma compounds, showcasing the complex sensory profiles that make non-alcoholic beers flavorful alternatives. It's a must-listen for anyone curious about what’s really in their pint!

The emotional rollercoaster of falling is explored, flipping between embarrassment and laughter. A mother shares her birthday stumble, while her son delights in fail videos. Caroline tests her slapstick skills with a clown, examining the humor behind spills. A psychologist delves into embarrassment's roots and reveals its evolutionary purpose. Personal stories intertwine with scientific insights, encouraging listeners to embrace mishaps as moments of connection and growth. The nature of our reactions to falls sparks both thought and chuckles.

Discover the surprising ways flies navigate in rectangles and how fish use bioluminescence for camouflage. Learn about the intricate mating dance of flies and how to differentiate male from female mosquitoes. Dive into the mysteries of starfish symmetry and the challenges of measuring Mount Everest amidst climate change. Hear an incredible survival tale from a mountaineer and celebrate a presenter's quirky dedication to axolotls with a tattoo. This podcast is a treasure trove of scientific wonders that will leave you amazed!

In this enlightening discussion, Prof Sara Russell, a planetary science expert from the Natural History Museum, Prof Neil Comins, an astrophysicist known for his work on the Moon's impact, and Prof Katarina Miljkovic, a planetary collisions researcher, dive into the Moon’s critical role in shaping Earth. They explore fascinating hypotheticals: life without the Moon, the effects of potential dual moons, and the geological contrasts between the two bodies. Their insights reveal how the Moon's presence governs tides, inspires exploration, and preserves cosmic history.

Why do we seek out painful experiences like hot chilies and intense workouts? The podcast dives into this paradox, revealing how our brains rewire sensations of pain into pleasure. Discover the spicy world of extreme chilies and hear personal anecdotes from chili-eating champions. Learn why bittersweet flavors, like coffee, can be enjoyable, tapping into our evolutionary past. Finally, explore how exercise can lead to a euphoric 'runner's high,' turning discomfort into a rewarding experience.

Jigsaw puzzles ignite a passionate debate: are they a joyful challenge or a frustrating mess? A ten-time UK champion shares lightning-speed tips amid thrilling competition anecdotes. Delve into the brain's inner workings as experts reveal the role of the hippocampus in recognizing shapes and colors. Discover why women excel in puzzle-solving and how similar cognitive skills connect us to clever crows. Whether for focus or creativity, the allure of jigsaws offers both fun and a workout for the mind!

Do you find your bearings quickly or are you easily disorientated? Do your friends trust you with the directions in a new city? Finding our way in the physical world, whether that is around a building or a city, is an important everyday capability, one that has been integral to human survival. This week CrowdScience listener David wants to know whether some people are ‘naturally’ better at navigating, so presenter Marnie Chesterton sets her compass and journeys into the human brain. Accompanied by psychologists and neuroscientists Marnie learns how humans perceive their environment, recall routes and orientate themselves in unfamiliar spaces. We ask are some navigational strategies better than others? Professor Hugo Spiers from UCL shares his latest lab for researching navigation and tells us that the country you live in might be a good predictor of your navigation skills. But is our navigational ability down to biology or experience, and can we improve it? With much of our modern map use being delegated to smartphones, Marnie explores, with Prof Veronique Bohbot what an over-reliance on GPS technology might do to our brain health. Presenter: Marnie Chesterton Producer: Melanie Brown(Photo: Man standing on rural road holding up a road map, head obscured by map. Credit: Noel Hendrickson/Getty Images)

Why do dogs have such shorter lifespans compared to humans? Delve into fascinating biological mechanics behind longevity across various species, from rapid aging in small animals to the centuries-old Greenland shark. Discover how evolutionary trade-offs influence growth and reproduction strategies. The role of genetics, metabolism, and even emotions tied to pet companionship adds depth to this exploration. Plus, learn about the surprising longevity of certain bat species and their unique adaptations.