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Tag: "exceptions" at biology news

An ancient bathtub ring of mammoth fossils

...r floods and deeper waters, up to 1,200 feet, were exceptions rather than the rule. Full skeletons found at lower elevations were likely buried soon after death-by-torrent, a hard to imagine wall of water a half-mile high spanning the doomed creature’s entire field of vision and approaching as fast as 60 mil...

Invasion of the island bats

...n, these few instances could be interpreted as the exceptions that prove the rule, anomalies easily explained by the unique circumstances of each case. Analysis of bat DNA published in Journal of Biogeography reveal that several neotropical species descended from ancestors that evolved in the West Indies, a...

Good times ahead for dinosaur hunters, according to U of Penn scientist's dinosaur census

...itish, Canadian and American researchers, with few exceptions in other countries. In recent decades, however, the discovery of new fossil beds, especially in China and Mongolia, has resulted in a greater diversity among dinosaur researchers. Ultimately, however, there are only so many dinosaurs that can be f...

Eco-friendly bug sucker

...by 2005 as part of the Montreal Protocol, but some exceptions were granted for the food and farming industries. "The initial hardware cost of an MSDD system is higher than methyl bromide, but the cost of chemicals is much cheaper, so that eventually it would pay for itself", Essert told Chemistry & Industr...

Innovative method for creating a human cytomegalovirus vaccine outlined

...e virus generally poses little threat to them. The exceptions are AIDS patients, transplant recipients, and others with compromised immune systems are at risk for complications. The virus is a member of the herpes virus family, which includes the herpes simplex viruses, the viruses that cause chicken pox (varic...

Insect predation sheds light on food web recovery after the dinosaur extinction

...t this conventional wisdom and found some shocking exceptions that have given us new ideas about how food webs recover from mass extinction," he added. The researchers include Wilf; Conrad C. Labandeira, curator, fossil arthropods, the Smithsonian Institution; and Kirk R. Johnson, vice president for researc...

Evolution of life on Earth may hold key to finding life in outer space

...ame major amino acids in proteins, and ?with minor exceptions ?the use of DNA or occasionally RNA as genetic material," Fox said. "This suggests life had a single origin from an earlier 'prebiotic' world, and research in NASA's Exobiology Program seeks to understand how this happened. The results of this type o...

Pulsating ultrasound enhances gene therapy for tumors

...any area of the body accessible by ultrasound, the exceptions being the lungs and bones. Additional advantages of pulsed-HIFU include no scarring, limited blood loss and infections, reduced risk of other complications, shortened recovery time, significant reduction in costs and the potential for many procedures...

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