life's little mysteries
It isn't true that we can't smell ourselves, although we do become habituated to our own scent.
Neon green, ultraviolet, rainbows — the variety of colors animals can make seem endless. Here's why they make this profusion of color.
Most scientists say a star can never become a planet, but the boundaries between these stellar objects can sometimes be murky.
What are mirages and why does this optical phenomenon cause us to see reality differently?
Walking upright has allowed us to become some of the best distance runners in the world, but at the expense of speed.
Ramesses II married his daughter and Cleopatra VII married her brother, but how common was marriage within royal and commoner families?
Animals have sex in all sorts of weird and wonderful ways. Birds have sex via an internal chamber called a cloaca that is present on both male and female animals.
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