Everything was reeeeally small, then it grew. OK, that is oversimplification. But if you want to sit in on a fast-moving lecture of how the Big Bang begat the universe which begat elements which lead to the periodic table and water and us, or how the sun was at just the right size and place to...
Why do we look the way we do? What does the human hand have in common with the wing of a fly? Are breasts, sweat glands, and scales connected in some way? To better understand the inner workings of our bodies and to trace the origins of many of today's most common diseases, we have to turn to une...
The planet looked decidedly modern, except for one important omission: it lacked a big-brained species walking on two legs. Hints to the revolution afoot are first seen inside rocks about 7 million years old from what are today Chad and Kenya. A French team, working at the margin of a lake bed, u...