The year is 1970 and it’s an unusually warm June day. Sid Altman is worried. He has no job prospects and he has little to show for a year of work in Francis Crick and Sydney Brenner’s laboratory in Cambridge, England. Crick was the co-discoverer of DNA (DeoxyriboNucleic Acid), the molecule that encodes the genetic information that tells cells how to function and grow. It’s an...

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featured question

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?

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In the news

Take two parasites and call me in the morning

July 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.

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