In the April 1 SN: Digital tech on the brain, cancer’s sweet spell, elephant sleep stats, ancient stardust spotted, a hydrothermal cradle of life, nutrition in a changing climate, nesting-doll parasitism, a neutrino trio and more.
NUMBER NERVOUSNESS People anxious about doing math use certain brain networks differently when doing arithmetic, which suggests they might use different problem-solving strategies than people who aren’t anxious about math.
LONG, STRANGE TRIP LSD briefly got tagged as a gene breaker a half century ago before getting a reprieve. Researchers are still trying to figure out how this substance triggers intense, long-lasting hallucinations.
LIKES FLASHY GUYS Brain size in a female guppy (left) turns out to affect her taste in males. Bigger brains go with a preference for a colorful guy (right) instead of some dim dud.