In the May 27 SN: Genetic intruders, seeing Chaco in a new light, an artificial womb, Mars’ origin revisited, domestication of the horse, glimpsing Earth’s glacial past, what’s in a fang blenny’s bite and more.
IN NEW LIGHT Recent research suggests that the ancient Chaco society of the U.S. Southwest was founded by locals and run by a female lineage for hundreds of years. The best-known Chaco structures are great houses, massive, multilevel buildings represented here by the remains of Pueblo del Arroyo.
PETER DONALDSON/ALAMY
MOM’S A CHAMP This baby orangutan could guzzle its mom’s milk for more than eight years, the longest of any wild mammal on record.
Tim Laman
DO THE WAVE Quantum matter acts like both a particle and a wave, as demonstrated by the famous double-slit experiment (illustrated above). Electrons sent through a pair of slits interfere like waves, creating peaks and troughs. This wave nature of matter could be used to create a tractor beam that could reel in atoms or molecules, a new study proposes.
Russell Kightley/Science Source
FEELING THE HEAT Tree-lined streets in Berlin, shown, offer a lot of benefits for city residents. But during heat waves, the trees, along with other plants, can also contribute to poor air quality, a new study suggests.
christianchen/iStockphoto
