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Dolphins

What makes a mammal?

... from? Liam - When people starting doing taxonomy after Darwin, which was based upon shared history and ... mousey thing. Liam - Yeah, precisely. For a century after Darwin, people were doing taxonomy on morphological basis. ... Liam - Yeah and I had a moment - that was actually in Darwin’s garden, I think - I was just wandering around ...

Graffiti sperm

Why have sex?

... male and just makes all female progeny.  Georgia - Key to Darwin's theory of natural selection is survival of the ...