Tag: Evolution
How – and why – did homosexual behaviour evolve in humans and other animals?
A new cross-species study shows same-sex sexual behaviour has social benefits for groups, which explains its high frequency in humans and other mammals.
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12 Oct, 05:00 AM
Curious Kids: what came first, the chicken or the egg?
Evolutionary biology and the fossil record reveal a great deal about the origins of chickens and eggs.
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21 Sep, 03:00 AM
Arithmetic has a biological origin – it's an expression in symbols of the 'deep structure' of our perception
Humans have been making symbols for numbers for thousands of years. Different cultures developed their own symbols, but all use addition and multiplication, suggesting arithmetic is a universal truth.
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15 Aug, 09:00 AM