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.
DISEASE DEFENSE To control the spread of dengue in Bangkok, DDT is sprayed to kill mosquitoes, the primary insect that transmits the virus.
GROWING PAINS As cells divide and grow to replenish and repair organs, accidental mutations may crop up in cancer-associated genes. A new study suggests such random mistakes are the source of 66 percent of mutations in cancer cells (illustrated here) across the board.
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.