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It’s worth taking the time to understand the nitrogen cycle, because it has many important impacts on the planet. In particular, it helps you and many other living things get the nitrogen they need to survive.

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In the beginning, the Zika virus didn’t seem like the next big news story. But time revealed just how dangerous the Zika virus can be.

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You, me and everyone around us are constantly getting older. Why does this happen? And is there anything humans can do to slow down or even stop the aging process?

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Viruses just don’t meet the requirements to be included in the Tree of Life. And although they have several ideas, scientists aren’t sure where viruses come from.

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HIV is a retrovirus that causes AIDS. But where did it come from, and how did it spread?

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The next time you hear someone say, “Sticks and stones can break my bones, but words will never hurt me,” tell them to think again! Studies suggest that non-physical forms of bullying are just as painful as physical forms.

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Cancer is an ancient disease that has affected humans for millennia. But it’s only in the past century or so that cancer has become common in Canada and the rest of the Western world.

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The theory of evolution by natural selection can help explain why religion has been practised throughout human history.

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If junk food is so bad for you, why does it taste so good? It’s partly because humans have evolved to crave foods high in sugar, salt and fat. But it’s also because junk food is engineered to exploit these cravings.

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If certain noises completely drive you mad, you just might have a rare neurological condition called misophonia.

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