KJ Cooper in Victoria, sent this in: When I go into a sauna, what exactly am I sweating out?<\/p>\n
We tracked down Pascal Imbeault<\/a>, an exercise physiologist at the University of Ottawa, to answer this question. He says you are sweating out mainly water, adding that there are physical and mental health benefits to using a sauna, but it\u2019s a myth that sweating detoxifies your body.<\/p>\n Jim Tearoe from the Okanagan Valley, B.C., would like to know: How do animals and birds, such as polar bears living on ice and snow, and albatross living with a lot of ocean glare, protect their eyes from damage from continual, bright, high UV light?<\/p>\n Amber Labelle<\/a>, a board-certified veterinary ophthalmologist in Ottawa, says that polar bears have bushy eyelashes and dark eyelids that act like sunglasses, but albatrosses don’t have to worry so much because oceans mostly absorb UV glare.<\/p>\n Tina Hopkins from Delta, B.C., asks: Why are robins’ eggs such a beautiful blue colour?<\/p>\n We went to Philina English<\/a>, a biologist with Fisheries and Oceans Canada in Nanaimo, B.C., who’s researched this, to answer this question. She said the blue pigment comes from the breakdown of hemoglobin from their red blood cells, and that there are several theories about the evolutionary advantage of producing blue eggs. <\/p>\n Anna in Ottawa, wrote in to ask: What would happen to our Earth if we no longer had a moon?<\/p>\n We fielded this one to Laurie Rousseau-Nepton<\/a>, an astrophysicist at the University of Toronto. She says without our moon, our days would be shorter because it wouldn\u2019t stabilize our rotation anymore, and life on Earth would be drastically different.<\/p>\n Jennifer Smith from Toronto, sent this one in: Why are cats’ tongues rough and dogs’ tongues smooth?\u00a0<\/p>\n We reached out to Kate Shoveller<\/a>, a pet nutrition researcher at the University of Guelph. She says the animals\u2019 tongues are used for different purposes. Cats\u2019 tongues are primed for all the grooming they do, and to help strip flesh from bones during a meal. Dogs\u2019 tongues are best for helping them dissipate heat through panting.<\/p>\n Nicole Corrado from Beaconsfield, Que., asks: Flamingos and pigeons produce milk, and all birds are dinosaurs, but did any dinosaurs that are not birds produce milk?<\/p>\n For the answer, we asked Corwin Sullivan<\/a>, an associate professor at the University of Alberta, and adjunct curator at the Philip J. Currie Dinosaur Museum. He says that some birds produce crop milk in their digestive tract, so if some dinosaurs did make milk, they would have done it in a similar way, although no such evidence exists in the fossil record so far.<\/p>\n Sticking with dinosaurs, Miklos Oravetz wants to know:\u00a0 Some dinosaurs were reptilian giants. Even some mammals like the beaver, the cave bear, and the sabre-tooth tiger were giant during the last ice age. Why do some animals get big and some don’t, and were there ever any giant humans?<\/p>\n To get our answer we reached out to Danielle Fraser<\/a>, the head of paleobiology at the Canadian Museum of Nature. She says that there are certain conditions that can lead to an animal evolving to be mega-sized, like high amounts of nutritious food, selective pressure or even colder temperatures.<\/p>\n Eleven-year-old Sierra from Burnaby, B.C., sent this in: They say hot air rises. So then why, when you’re on a mountain, is there usually snow on top, but there’s nothing farther down?<\/p>\n![\"Five](\"https:\/\/www.newsbeep.com\/ca\/wp-content\/uploads\/2026\/06\/1782522255_424_default.jpg\")
Taking a sauna safely can be great for your physical and mental health. (AP)<\/p>\n![\"A](\"https:\/\/www.newsbeep.com\/ca\/wp-content\/uploads\/2026\/06\/1782522256_504_default.jpg\")
Four blue robin eggs are seen in the morning light, Thu., May 6, 2021, in Silver Springs, Md. (Carolyn Kaster\/AP Photo)<\/p>\n![\"A](\"https:\/\/www.newsbeep.com\/ca\/wp-content\/uploads\/2026\/06\/1782522257_832_default.jpg\")
The moon and Earth seen during the Artemis II mission in April 2026. (NASA)<\/p>\n![\"Close-up](\"https:\/\/www.newsbeep.com\/ca\/wp-content\/uploads\/2026\/06\/1782522258_650_default.jpg\")
A dog’s tongue is smooth because they don’t need to use it for grooming like cats do. (The Associated Press)<\/p>\n
![](\"https:\/\/www.newsbeep.com\/ca\/wp-content\/uploads\/2026\/06\/1782522259_112_default.jpg\")
Cascade Mountain, near Banff, Alta., with Lake Minnewanka in the distance. (Scott Crowson\/CBC)<\/p>\n