According to one Darwinist, selfish societies evolve into egalitarian ones, for selfish reasons. It's all in the math, the genes, and natural selection.
For an enterprise that has failed for 50 years, SETI gets good press. There are many worthy enterprises on the planet; what is it about SETI that gets honorable mention with nary a critical word?
The cochlea in the inner ear, where sound is transmitted to the brain, has a spiral shape resembling a snail shell. It's not just to save space, researchers have found.