A millimeter-sized beetle flies efficiently with feathery wings and a beat mode not seen before. Did it evolve by natural selection?
It must be good if engineers want to copy it. Siphonophores are colonial animals that have mastered the sport of synchronized swimming.
A planet needs more than location in a habitable zone. It needs the right ingredients, and salt has a surprising role.
New technologies are giving scientists global information on a wide variety of bird species.
The fossil record shows a “Hexapod Gap.” Unfortunately for Darwin, the two leading theories to explain the gap can be ruled out.