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Did Exploding Stars Help Life on Earth Thrive?
April 24, 2012 — Research by a Danish physicist suggests that the explosion of massive stars -- supernovae -- near the Solar System has strongly influenced the development of ... > full story -
Diversity Aided Mammals’ Survival Over Deep Time
April 23, 2012 — The first study of how mammals in North America adapted to climate change in “deep time” found that families with greater diversity were more stable and maintained larger ranges than less ... > full story -
First Fertile, Then Futile: Ammonites Change in Reproductive Strategy Helped Them Survive Three Mass Extinctions
April 23, 2012 — Ammonites changed their reproductive strategy from initially few and large offspring to numerous and small hatchlings. Thanks to their many offspring, they survived three mass extinctions, a research ... > full story -
New Monitoring System Clarifies Murky Atmospheric Questions
April 19, 2012 — Scientists have developed a new monitoring system to analyze and compare emissions from human-made fossil fuels and trace gases in the atmosphere, a technique that likely could be used to monitor the ... > full story -
Warning Signs from Ancient Greek Tsunami
April 19, 2012 — In the winter of 479 B.C., a tsunami was the savior of Potidaea, drowning hundreds of Persian invaders as they lay siege to the ancient Greek village. New geological evidence suggests that the region ... > full story -
Analysis Raises Atmospheric, Ecologic and Economic Doubts About Forest Bioenergy
April 18, 2012 — A large, global move to produce more energy from forest biomass may be possible and already is beginning in some places, but scientists say in a new analysis that such large-scale bioenergy ... > full story -
Evidence for a Geologic Trigger of the Cambrian Explosion
April 18, 2012 — The oceans teemed with life 600 million years ago, but the simple, soft-bodied creatures would have been hardly recognizable as the ancestors of nearly all animals on Earth today. Then something ... > full story -
Egg-Laying Beginning of the End for Dinosaurs
April 17, 2012 — Their reproductive strategy spelled the beginning of the end: The fact that dinosaurs laid eggs put them at a considerable disadvantage compared to viviparous mammals. Researchers believe they now ... > full story -
Ammonites Found Mini Oases at Ancient Methane Seeps
April 16, 2012 — Scientists have shown that ammonites -- an extinct type of shelled mollusk that's closely related to modern-day nautiluses and squids -- made homes in the unique environments surrounding methane ... > full story -
Off-Label Prescribing of Medications Is Common, Canadian Study Suggests
April 16, 2012 — A study evaluating off-label prescribing of medications in a primary care network in Canada suggests the practice is common, although it varies by medication, patient and physician characteristics, ... > full story
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