Q: In winter in very cold countries like Canada and Finland, most rivers, lakes and ponds freeze over. Cars can be driven over lakes and the ice does not break. But if you have a strong enough saw, you can cut through the ice and there will be water underneath. It is also common to fish through these holes and get good catches. Why don't rivers and lakes completely freeze when barrels of water do freeze solid? How do fish, crustaceans and plants survive these bitterly cold conditions?Read the answer...
Take two parasites and call me in the morningJuly 26, 2014
Two recent papers suggest that some parasites may be good for us. UBC botanist Laura Wegener-Parfrey and Julius Lukeš of the Canadian Centre for Advanced Research question our traditional perception of intestinal parasites. The papers offer a systematic review of cases where humans have deliberately ingested parasites for research and suggest that certain parasites could have beneficial effects on conditions such as Crohn's disease and Irritable Bowel Syndrome. More at Science Media Centre of Canada.In Other News:
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