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Science


Target Data Breach Put Down To Access Details Stolen From Contractor

WASHINGTON (UPI) — Failure to properly segregate systems handling payment card data in its network led to the massive data breach at Target last month, a U.S. researcher says. Hackers who broke into the retailer’s network did so by using login credentials stolen from a heating, ventilation and air conditioning company that does work for […]

Experiment Proves Salmon Use Earth’s Magnetic Field To Navigate

CORVALLIS, Ore. (UPI) — U.S. scientists say they’ve confirmed salmon are using Earth’s magnetic field to navigate across thousands of miles of water to find their rivers of origin. Researchers at Oregon State University report exposing hundreds of juvenile Chinook salmon at the Oregon Hatchery Research Center to different magnetic fields that exist at the […]

Human Brain’s Decision-Making ‘Arbitrator’ Identified

PASADENA, Calif., Feb. 5 (UPI) — U.S. researchers say they’ve identified the “arbitrator” in the human brain that balances decisions between habitual behaviors and spontaneous action. The brain has a learning system devoted to guiding people through routine, or habitual, behaviors, as well as a separate goal-directed system for actions undertaken only after careful consideration […]

Researchers Find First Evidence Of Birds Using Eyes To Communicate

CAMBRIDGE, England (UPI) — Jackdaws, crow-like birds, use their eyes to communicate with each other, the first time the ability has been observed in non-primates, British researchers say. Researchers at the universities of Cambridge and Essex, writing in the journal Biology Letters, report jackdaws use their eyes as a warning signal to keep competitors from […]

Small Oregon Fish Could Be First Taken Off Endangered Species List

PORTLAND, Ore. (UPI) — U.S. officials propose taking the Oregon chub off the list of Endangered and Threatened Wildlife, which would make it the first fish de-listed due to recovery. The proposal Tuesday by the U.S. Fish and Wildlife Service is the culmination of a 20-year partnership with the Oregon Department of Fish and Wildlife, […]

New Coral Species Found Off Peru Dazzles With Fiery Red Color

LIMA (UPI) — Researchers at the Smithsonian Institution say scuba divers have found a new, fiery-red coral species off the coast of Peru’s Paracas National Reserve. The species could be unique to Peruvian waters, researchers at the Smithsonian Tropical Research Institute and the University of Costa Rica reported Monday. “This new species may be found […]

Experiments Show Human Brain Uses One Code For Space, Time, Distance

HANOVER, N.H. (UPI) — U.S. researchers report they’ve found the first evidence people use the same brain circuitry to figure out space, time and social distances. Scientists at Dartmouth College conducted experiments to determine whether there is an overlap, or a common mechanism, in the brain areas used to represent time, space and social relationships. […]

Study Says Faces Express Four Common Emotions, Not Six As Believed

GLASGOW, Scotland (UPI) — Researchers in Scotland say a belief there are six basic emotions universally recognized through specific facial expressions is wrong — there are just four. A belief has been commonly held that happiness, sadness, fear, anger, surprise and disgust are easily interpreted through facial expressions, regardless of language or culture. Scientists at […]

Pyramid Found In Egypt Is Older Than Giza’s Great Pyramid

EDFU, Egypt (UPI) — Archaeologists report they’ve uncovered a 4,600-year-old step pyramid near the Egyptian city of Edfu built decades before the Great Pyramid at Giza. It is the seventh such “provincial” pyramid discovered, all constructed before the better known pyramids at Giza, LiveScience reported Monday. The solid step-pyramids have been found in various part […]

Spider Females Choose Males Best At Wrapping ‘Wedding Gift’

MONTEVIDEO, Uruguay (UPI) — South American spider females pick their mates based on how well a “wedding gift” of prey is wrapped, white silk and all, researchers say. Paratrechalea ornate, a South American semi-aquatic spider, is one of many animals and especially invertebrates that use nuptial gift-giving during courtship and mating, they said. During mate […]

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