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Octopus investigators: From left to right, Dr. Nir Nesher (standing), Dr. Guy Levy and Prof. Benny Hochner at the Hebrew University of Jerusalem have discovered how octopuses don't tie themselves in knots.
An octopus's arms are covered in hundreds of suckers that will stick to just about anything, with one important exception: those suckers generally won't grab onto the octopus itself, otherwise the impressively flexible animals would quickly find themselves all tangled up.

Health & Medicine

An international team of scientists, including researchers from the University of California, San Diego, report that the likely causative agent of Kawasaki disease (KD) in Japan is a windborne agent originating from a source in northeast China. KD is a mysterious childhood ailment that can permanently damage coronary arteries.