Science News Archive - April 19, 2011
A reptile that lived 275 million years ago in present day Oklahoma is giving paleontologists a glimpse of the oldest known toothache, predating by 200 million years the previous record for the earliest known evidence of tooth decay in a terrestrial vertebrate.
Feathers collected from the rare Pacific black-footed albatross over the past 120 years have helped researchers from Harvard University track increases in the neurotoxin methylmercury in the endangered bird, which forages extensively throughout the Pacific.
Just days before Earth Day, tropical dry forests in the Brazilian state of Minas Gerais received good news as members of the Superior Court of Minas Gerais overturned a state law that altered the status of the 6,000 square-mile forestâ€™s protection.
The harmful effects of ozone that exist at low levels in the earthâ€™s atmosphere can be reduced when charging is done at night for electric vehicles, a new study has found.
The massive subduction zone earthquake in Japan caused a significant level of soil â€œliquefactionâ€ that has surprised researchers with its widespread severity, a new analysis shows.
Big marine protected areas (MPAs) are cheaper to manage per hectare than small ones, and no-fishing zones are cheaper to manage than multiple-use zones, a new study has found.
A little information can go a long way when it comes to understanding rodent-borne infectious disease, as shown by a new study led by scientist John Orrock of the University of Wisconsin-Madison and colleagues.
More than 40 species of fish that are native to the Mediterranean Seas are threatened with extinction in the next few years.
The GOES-13 satellite captured images of the powerful weather system that triggered severe weather in the southern US this weekend, and NASA created an animation to show its progression.
With ubiquitous social media sites like Facebook and Twitter blurring private and professional lines, there is an increasing need for physicians to create a healthy distance between their work and home online identities, two Beth Israel Deaconess Medical Center physicians assert.
- A Roman unit of weight, 1⁄1728 of a pound.
- A weight of four grains used in weighing gold and precious stones; a carat.
- In anatomy, a formation suggesting a husk or pod.
- The lowest unit in the Roman coinage, the twenty-fourth part of a solidus.
- A coin of base silver of the Gothic and Lombard kings of Italy.