Seeing red: for happy faces, or snakes in the grass?
We see red: dogs don’t. Our eyes emphasise contrasts, making it easier to spot colours, patterns, and rhythmical movements. But no two people see red in the same way. How has our vision evolved, and why?
Are there extraterrestrials?
Can you make a brain the size of a human neuron?
Although this is intended as a light-hearted guide to areas of science that might interest you, it serves to illustrate the inter-disciplinary nature of science.
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