Second-year Anthropology PhD student at the University of Toronto

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In 2017, scientists found fossils dating back to at least 3.8 billion years ago. How have life forms changed since then - and why?

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Your red blood cells do important work for your body. And they do it well because they’re missing one thing: nuclei.

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Arctic animals have features that help them thrive in a harsh environment. But the reverse is also true: many of these creatures depend on Arctic conditions to survive.

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Mercury pollution from southern Canada can travel all the way to the Arctic. There, mercury can impact aquatic food webs, and all the species who depend on them—including humans.

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Most people know that dogs and wolves have a lot of the same genes.But did you know that Pekingese dogs are the most genetically similar to wolves of all dog breeds? Learn how artificial selection processes created the dog breeds we see today. (3:41 min.)

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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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I am a 4th year PhD Candidate in Biological Sciences at the University of Calgary and I study group-living in animals.

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Do you live in close contact with animals, including pets, livestock, and wildlife? If yes, you’re at risk of catching zoonotic diseases like rabies.

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Animal agriculture is a big source of methane emissions. That’s right—this powerful greenhouse gas is being produced by cows!

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