The evolutionary story of extinction and the rise of dinosaurs faces challenges, but survives when the glue of imagination holds fragmentary evidence together.
Some material that flaked off a fossil in Alberta was not stone; it was dinosaur skin. Discoverers were excited and puzzled: how could it last so long?
How does a growing flower bud or feather follicle know where to put the intricate colors and patterns on a mature flower or feather? Scientists are beginning to get partial answers.
Here are accounts of three very different animals whose behaviors have baffled scientists till now. Scientists are beginning to get at least partial answers for scientific mysteries by carefully observing and testing to see how things work.
Some basic ideas about physics and astronomy remain so mysterious, and their explanations so flexible, they may lead some to question whether they should be called "hard sciences."
Left-leaning scientists have never given up on the 19th century notion that criminals are born, not made. Other evidence suggests "innate tendencies" can be overcome.
The fact that you can ponder how to use your brain implies it is a physical tool your soul uses. New findings support the idea that we can improve our brain function through effort, like we can learn to become better computer users.
The search for extra-terrestrial intelligence is like a detective story without a body. All those new planets, but no signal—at least not one that most scientists will accept.