In the April 29 SN: Proton puzzles, venomous swimmers, seeking early signs of autism, maximum entanglement, cephalopod intelligence insights, glass frog mothering techniques, Einstein on TV, touchy tyrannosaurs, seeing cells in 3-D and more.
FULL OF PLATES Earth’s outer crust is composed of more than a dozen large pieces, known as tectonic plates, which bump or slide against each other.
Peter Hermes Furian/Shutterstock
RADICAL THEORY Changes in the concentration of a highly reactive compound in the atmosphere called hydroxyl may be to blame for a rise in global methane levels since 2007, new research suggests. Redder regions in this simulation of a typical March hydroxyl distribution contain higher concentrations of the molecule.
Angharad Stell/Univ. of Bristol
HIDDEN HEAP A recent expedition to the Arctic found that some areas of the seemingly pristine waters, particularly around Greenland and in the Barents Sea, are littered with copious amounts of plastic debris.