The toys both delight children and aid groundbreaking research — Lego figures have even ventured into space. ...read more
The last time anyone saw the blue butterfly alive was in the 1940s. Since then, it has sparked a large insect conservation movement. ...read more
Some prolific serial killers almost certainly die before they can be caught. Now a new statistical analysis reveals just how many evade justice in this way. ...read more
Climate-change deniers often exploit confusion about these terms to muddy the waters about the science of global warming. Here’s what you need to know. ...read more