64 armadillos threaten a theory —
Armadillos come in fours, quadruplet offspring from a single egg, and are endowed with identical genes. Yet, the quadruplets are often not identical, a fact that calls into question the assumption that genes encased in the nucleus of the cell are the sole determinants of heredity. — Science News, November 30, 1968Update
What comes naturally to...
Martha Carlin married the love of her life in 1995. She and John Carlin had dated briefly in college in Kentucky, then lost touch until a chance meeting years later at a Dallas pub. They wed soon after and had two children. John worked as an entrepreneur and stay-at-home dad. In his free time, he ran marathons.
Almost eight years into their marriage, the pinky finger on John’s right hand...
Reviews & Previews
The U.S.S. Leviathan set sail from Hoboken, N.J., on September 29, 1918, carrying roughly 10,000 troops and 2,000 crewmen. The ship, bound for the battlefields in France, had been at sea less than 24 hours when the first passengers fell ill. By the end of the day, 700 people had developed signs of the flu.
The medical staff tried to separate the sick from the healthy, but that soon...
It almost feels like people think every known disorder could be cured by tweaking the gut microbiome: The list of possibilities includes obesity, liver disease, diabetes, autism, multiple sclerosis and rheumatoid arthritis, depression and anxiety. The length of that list alone invites skepticism among those of us who cover science. But there’s enough evidence that gut microbes...12/05/2018 - 05:15 Science & Society, Health, Neuroscience
Letters to the Editor
Exomoonmoon12/05/2018 - 05:00 Physics, Astronomy, Animals
A sighting by the Hubble Space Telescope provides more evidence that there’s a Neptune-sized moon, dubbed Neptmoon, orbiting the exoplanet Kepler 1625b, Lisa Grossman reported in “Hubble may have spotted the first known exomoon” (SN: 10/27/18, p. 14).
“If Neptmoon actually exists, could it possibly have moons of its own?” online reader MAdScientist72 asked. “And what...
In a broad swath of northwestern Alaska, small groups of recent immigrants are hard at work. Like many residents of this remote area, they’re living off the land. But these industrious foreigners are neither prospecting for gold nor trapping animals for their pelts. In fact, their own luxurious fur was once a hot commodity. Say hello to Castor canadensis, the American beaver.
The Science Life
Locust: The Opera finds a novel way to doom a soprano: species extinction.
The libretto, written by entomologist Jeff Lockwood of the University of Wyoming in Laramie, features a scientist, a rancher and a dead insect. The scientist tenor agonizes over why the Rocky Mountain locust went extinct at the dawn of the 20th century. He comes up with hypotheses, three of which unravel to music...
Out with the old — kilogram, that is.
Scientists will soon ditch a specialized hunk of metal that defines the mass of a kilogram. Oddly enough, every measurement of mass made anywhere on Earth is tied back to this one cylindrical object. Known as “Le Grand K,” the cylinder, cast in 1879, is kept carefully sequestered in a secure, controlled environment outside Paris.
On November 16...
There’s something big lurking beneath Greenland’s ice. Using airborne ice-penetrating radar, scientists have discovered a 31-kilometer-wide crater — larger than the city of Paris — buried under as much as 930 meters of ice in northwest Greenland.
The meteorite that slammed into Earth and formed the pit would have been about 1.5 kilometers across, researchers say. That’s large enough to...
Some moths aren’t so easy for bats to detect.
The cabbage tree emperor moth has wings with tiny scales that absorb sound waves sent out by bats searching for food. That absorption reduces the echoes that bounce back to bats, allowing Bunaea alcinoe to avoid being so noticeable to the nocturnal predators, researchers report online November 12 in the Proceedings of the National Academy of...