In the Sept. 2 SN: Cassini’s curtain call, next-gen birth control, gene editing in human embryos, neutrinos caught hitting nuclei, Canaanite DNA, pollination foiled by light pollution, a map of dark matter, an ancient sea worm and more.
STOMATA SUPERSTARS Scientists have gained new insight into why grasses like Brachypodium distachyon have extra-efficient stomata, adjustable pores on leaves that help regulate the exchange of water and gases between a leaf and the outside world.
Samuel Hazen/Univ. of Massachusetts Amherst
MOUSE SEE, MOUSE ITCH Like people, mice experience sudden itches after seeing other mice scratch — a boon for studying the neuroscience of contagious behaviors.
Diana Bautista/UC Berkeley
WHAT’S IN YOUR EAR? Studying earwax (sample below the type of animal donor species) might inspire new ways to reduce dust buildup.
Top row, left to right: David DeHetre/Flickr (CC BY 2.0); Dan Belanescu/Flickr (CC BY 2.0); Rob Wells/Flickr (CC BY-SA 2.0); Marit & Toomas Hinnosaar/Flickr (CC BY 2.0); bottom row: A. Noel, Z. Zachow and D. Hu/Georgia Tech