As warming breaks up the sea ice that serves as great frozen highways for Arctic wildlife, caribou and even wildflowers face route shutdowns, long detours or outright strandings. Already, ice bridges Peary caribou need for their seasonal migrations from island to island are becoming scarcer, with worse to come, an international research team reports September […]
A salty ocean more than 100 kilometers deep might lurk beneath Pluto’s icy heart, a new study suggests. The buried reservoir could have helped tip the dwarf planet over at some point in its past, bringing the heart-shaped region in line with gravitational forces from Charon, Pluto’s largest moon. A subsurface ocean isn’t a new […]
Man’s best friend can sometimes be wildlife’s worst enemy. Free-roaming dogs, both feral and owned animals that run loose, spread rabies and other diseases, kill wild animals and have caused extinctions. They’re even to blame for thousands of human deaths every year. And yet dogs get little of the hatred aimed at feral cats — […]
On the 47th anniversary of Sputnik’s launch, former Navy pilot Brian Binnie flew a rocket-powered ship past the brink of outer space. Named SpaceShipOne, the ship cruised up 112 kilometers, then plunged back to Earth, wings flared like a shuttlecock to slow its descent. SpaceShipOne’s October 4, 2004, flight, the second in two weeks, earned […]
Anyone who reads news about science (at Science News or otherwise) will recognize that, like the X-Men or any other superhero franchise, there’s a recurring cast of experimental characters. Instead of Magneto, Professor X, Mystique and the Phoenix, scientists have mice, fruit flies, zebrafish and monkeys. Different types of studies use different stand-ins: Flies for […]
Two electrifying light shows were much more than flashes in the pan. A 2007 thunderstorm over Oklahoma produced a lightning flash that stretched more than 321 kilometers horizontally — roughly the distance from Washington, D.C., to New York City. In southern France in 2012, a single lightning flash lit up the sky nonstop for 7.74 […]
Like lipstick on a collar, new DNA evidence is pointing to ancient affairs between bonobos and chimpanzees. Chimps carry a small percentage of bonobo DNA, researchers report in the Oct. 28 Science. The conclusion comes from analysis of the genetic instruction books, or genomes, of 63 wild-born chimps, two captive chimps named Clint and Donald, […]
SAN DIEGO — Babies as young as 5 months old possess networks of brain cell activity that react to facial emotions, especially fear, a new study finds. “Networks for recognizing facial expressions are in place shortly after birth,” Catherine Stamoulis of Harvard Medical School said November 13 during a news conference at the annual meeting […]
With no nipples and reptilelike eggs, short-beaked echidnas look like a first draft of a mammal. Yet, as Australia’s other digging mammals decline from invasive predators, the well-defended echidna is getting new love as an ecosystem engineer. The only mammals today that lay eggs are the four echidna species and the duck-billed platypus. Eggs are […]
SAN ANTONIO — Ancient Mesopotamians have traditionally been credited with inventing glassmaking around 3,600 years ago. But Mesopotamians may have created second-rate knock-offs of glass objects from Egypt, where this complex craft actually originated, researchers reported November 19 at the annual meeting of the American Schools of Oriental Research. Arguments that glass production originated in […]