Friday, January 28, 2011
Single-Fingered Dinosaur Found
Paleontologists have discovered a new species of parrot-sized theropod (Linhenykus monodactylus) that lived in Mongolia 84-75 million years ago and is the first to have only one finger with a large, single claw on each forelimb.
Thursday, January 27, 2011
New Family for Pink Meanie
From genetic analysis and visual examinations, reclassification of the predatory pink meanie jellyfish (Drymonema larsoni) as a new species has also required the creation of a new family (Drymonematidae) to include all Drymonema species—the first such major addition since 1921.
Wednesday, January 26, 2011
Illusion Aided Throwing Skill
A new study has found a natural size-weight illusion was critical to early human's development of the ability to throw objects long distances, a neurological key requiring extremely coordinated timing, motor and perceptive skills on par with social organization and language sharing the posterior parietal cortex in the evolution of the human brain.
Tuesday, January 25, 2011
Iranian Cheetah Subspecies
Genetic analysis of the critically endangered Asian cheetahs of Iran reveal that it is a distinct subspecies (Acinonyx jubatus venaticus) that split from African cheetahs about 30,000 years ago.
Monday, January 24, 2011
African Fossil Preservation
An ancient cold wind from a prehistoric ice-cap is the reason for the remarkable preservation of animal fossils in the remote Table Mountains of South Africa, providing nutrients to surface vegetation and a stagnant shallow sea that preserved even delicate tissues such as eyes and muscles.
Sunday, January 23, 2011
Pterosaur with Preserved Egg
Fossil remains of a pterosaur (Darwinopterus spp.) have been discovered in China that include an intact egg within the body cavity, allowing paleontologists to sex a dinosaur for the first time.
Saturday, January 22, 2011
Quantum States in Bird's Eyes
In a process known as the radical pair (RP) mechanism, bird's eyes are thought to detect changes in quantum-entangled electron pairs separated by light and altered by Earth's magnetic field, allowing them to orient themselves by exploiting this phenomenon of long-lived quantum states.
Friday, January 21, 2011
Sungrazer Comet Storm
Between December 13 and 22 of last year, NASA's Solar and Heliospheric Observatory (SOHO) detected more than two dozen sungrazing comets, a rate dramatically up from a norm of one every few days, and what may be a precursor of a larger as-yet undetected body moving along the same orbit.
Thursday, January 20, 2011
Relativistic Effects in Car Batteries
New calculations reveal that the heavier lead nuclei in conventional lead-acid car batteries attract electrons more powerfully, reaching 60% the speed of light and enabling the generation of 2 V, as opposed to lighter elements such as tin that are too weak to provide similar attractive force.
Wednesday, January 19, 2011
Earth's Rotation Changes Zodiac
Astronomers from the Minnesota Planetarium Society have recalculated the star signs corresponding to the zodiacal constellations and found due to Earth's precession the astrological signs have shifted by about a month from those established millenia ago.
Tuesday, January 18, 2011
34,000-Year-Old Cells Found
Sealed within a fluid-filled chamber constructed of salt crystals, scientists have found 34,000-year-old microorganisms living in a state of hibernation within a microscopic ecosystem and have been able to culture new microbes from these samples.
Monday, January 17, 2011
Early T. rex Ancestor
Fossils of a new species of early predatory dinosaur (Eodromaeus) have been discovered in Argentina, a small four-foot-long ancestor of later carnivorous dinosaurs such as T. rex, that lived some 230 million years ago.
Sunday, January 16, 2011
Cosmological Standard Candles
New observations using NASA's Spitzer Space Telescope show that Cepheid variables, pulsating stars often used as calibration points to measure cosmological distances, can lose mass and shrink over time and thus make measurements of distance more difficult.
Saturday, January 15, 2011
Thunderstorms Create Antimatter
NASA's orbiting Fermi Gamma-ray Telescope has detected unexpected positron bursts originating from lightning flashes in thunderstorms on the surface, such radiation focused into a beam by Earth's magnetic field and directed out into space.
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