Changes in the sky have been important to peoples throughout the world. That connection may go back much further than our species.
Bringing some scientific reality to an excerpt from a book that tries to revive the myth of an ancient, large-brained race of humans.
A close look at the idea that most of the brain is superfluous space, with a review of people who get by with extraordinarily small brain mass.
Looking critically at a story used to illustrate the process of natural selection.