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168,100 articles from ScienceDaily

Forensic tools for catching poachers

The trade in ivory was largely outlawed in 1989, but poaching continues and remains a serious threat to the African elephant. Seizures of large amounts of ivory, sometimes over a ton, continue to occur. Scientists have now found a way to determine just where the ivory comes...

Preschool children who can pay attention more likely to finish college: Early reading and math not predictive of college completion

Young children who are able to pay attention and persist on a task have a 50 percent greater chance of completing college, according to a new study. Surprisingly, achievement in reading and math did not significantly predict whether or not the students completed college. And the good news for parents and educators, the researchers said, is that attention and persistence skills are malleable and...

Seafood, wild or farmed? The answer may be both

Most people think of seafood as either wild or farmed, but in fact both categories may apply to the fish you pick up from your grocery store. An article recommends that when a combination of seafood production techniques are used, this be acknowledged in the marketplace.

Correlation between injection wells and small earthquakes discovered

Most earthquakes in the Barnett Shale region of north Texas occur within a few miles of one or more injection wells used to dispose of wastes associated with petroleum production such as hydraulic fracturing fluids, according to new research. None of the quakes identified in the two-year study were strong enough to pose a danger to the...

Major breakthrough in macular degeneration

Researchers have made an exciting finding in the "dry" form of age-related macular degeneration known as geographic atrophy (GA). GA is an untreatable condition that causes blindness in millions of individuals due to death of retinal pigmented epithelial cells.

Possible muscle disease therapeutic target found

The study of muscular system protein myostatin has been of great interest to researchers as a potential therapeutic target for people with muscular disorders. Although much is known about how myostatin affects muscle growth, there has been disagreement about what types of muscle cells it acts upon. New research narrows down the field to one likely type of...

New study defines the genetic map of the Jewish diasporas

A new genetic analysis focusing on Jews from North Africa has provided an overall genetic map of the Jewish Diasporas. The findings support the historical record of Middle Eastern Jews settling in North Africa during Classical Antiquity, proselytizing and marrying local populations, and, in the process, forming distinct populations that stayed largely intact for more than 2,000...

USGS science goes to Mars

With the Mars rover Curiosity's successful landing Sunday, Aug. 5, at 10:32 p.m. PDT, U.S. Geological Survey scientists continue their strategic role in the Mars Science Laboratory (MSL), the most advanced mission yet to explore whether the Red Planet has ever offered environmental conditions favorable for microbial...

NASA's Curiosity rover caught in the act of landing

An image from the High Resolution Imaging Science Experiment (HiRISE) camera aboard NASA's Mars Reconnaissance Orbiter captured the Curiosity rover still connected to its 51-foot-wide (almost 16 meter) parachute as it descended towards its landing site at Gale Crater.

Infants of overweight mothers grow more slowly

Babies born to overweight mothers gain less weight and grow more slowly than those born to normal-weight mothers, a new study has found. But they do catch up, meaning that pediatricians should refrain from boosting their nutrition, which could make matters worse, experts say.

Airborne technology helps manage elephants

For years, scientists have debated how big a role elephants play in toppling trees in South African savannas. Tree loss is a natural process, but it is increasing in some regions, with cascading effects on the habitat for many other species. Using high resolution 3-D mapping, scientists have for the first time quantitatively determined tree losses across savannas of Kruger National Park. They...

New Hampshire leads contiguous United States in percent tree cover

Tree cover in the nation's Lower 48 states covers 659 million acres, more than one-third of the nation, according to a US Forest Service study of national tree cover and impervious surfaces. New Hampshire leads the nation in percent tree cover (89 percent), followed by Maine (83 percent) and Vermont (82 percent). Percent tree cover is highest in Connecticut (67 percent) and lowest in Nevada (10...