David Carmean

Other

Melody From Maronville, asks,

Is taxonomy a rigorous, objective...


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Biology

Charcoal From the Internet, asks,

What makes classifying dogs in breeds different from classifying humans in races? I thought that breed is different from race because unlike the...


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Biology

Adrian From Vancouver, asks,

I heard someone explaining that whales and dolphins are not fish because they were in fact mammals. As I understand it, once you are a mammal,...


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Other

Judy From North York, asks,

I understand survival of the fittest, but why would evolution allow animals to live in water but still need oxygen to...


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