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.
ALL TANGLED UP In a healthy mouse (left), nerve cells (white) that release serotonin extend through the hippocampus. But when a specific gene is knocked out, those nerve cell wires clump together (right).
T. Maniatis/Columbia's Zuckerman Institute
SURE SHOT In the United States, HPV vaccination rates lag for girls and boys. The message that the vaccine prevents cancer isn’t getting out there, researchers say.
HIDE AND SEEK Zika virus (red) remains in the central nervous system much longer than it does in the bloodstream, which could help explain its effects on the brain.