Biology

Irene Uchida has been asked to join the morning hospital rounds at Children’s Hospital in Winnipeg, Manitoba. It’s around 1960. She’s talking about patients who have the symptoms of trisomy of chromosome 18 — that is, three number 18 chromosomes instead of the normal two. A doctor named Jack Sinclair raises his hand and says, “Hey, I think we have one on the fourth...

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featured question

Q: Is it possible for the air that we breathe to either run out or deteriorate to such an extent that we all slowly suffocate? Can this be caused by overpopulation of the planet added with deforestation, etc?

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In the news

Potentially 'catastrophic' changes underway in Canada's northern Mackenzie River Basin: report

June 10, 2013

Canada's Mackenzie River basin -- among the world's most important major ecosystems -- is poorly studied, inadequately monitored, and at serious risk due to climate change and resource exploitation, a panel of international scientists warn today.

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