Attempts over the past few centuries to carry out "humane" capital punishment methods have often failed to alleviate suffering. ...read more
A new study claims that a comet influenced the direction of Native American cultures 1,600 year ago. That conclusion is controversial but it reveals the challenge of understanding natural hazards in the ancient past. ...read more
From snakes to spiders to scary sea creatures, the world's smallest continent has it all. But how unique are they? ...read more