How do you study an animal you can't even get close to? Camera traps and drones are revolutionizing wildlife biology by recording the secret lives of animals—from whales and tigers to elusive giant armadillos—all without disturbing them.
Discover the science behind Leonardo da Vinci's masterpieces—and Mona Lisa's iconic smile.
Can new engineering techniques help prevent deadly bridge collapses?
Amazing fossils reveal how mammals took over after an asteroid wiped out the dinosaurs.
