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Tag: "tops" at biology news

Stealth Worms May Improve Insect Pest Control

...pical rainforests," Stock says. "We sweep from the tops of the trees all the way to the ground, searching for nematodes that are potential insect pathogens. The misconception is that they are concentrated more in temperate zones, but this is not true. We're trying to unveil the mystery of nematode diversi...

Discovery of an American salamander where it shouldn't be: Korea

...ed new genera in Guatemala and Cost Rica. But this tops everything I've ever found by a long ways," Wake said. "For me, this is the most stunning discovery in the field of herpetology during my lifetime. It's so utterly unexpected, so completely unexpected." The discovery of a lungless salamander from th...

The genetic origins of corn on the cob

...rows and to a tassel that was far bushier than the tops of normal corn plants. Now, researchers at Cold Spring Harbor Laboratory in New York have isolated the ramosa1 gene and shown how it controls the arrangement and length of flower-bearing branches in corn, related cereal crops, and ornamental grasses...

$6.5 Million Grant for Microarray Center at Yale School of Medicine

...rows and to a tassel that was far bushier than the tops of normal corn plants. Now, researchers at Cold Spring Harbor Laboratory in New York have isolated the ramosa1 gene and shown how it controls the arrangement and length of flower-bearing branches in corn, related cereal crops, and ornamental grasses...

Leading lampreys to slaughter: Pheromone for scourge of Great Lakes identified

...lympic-sized swimming pools. This level of potency tops that of all other fish attractants, including those of salmon. To find the pheromone, the researchers extracted 8,000 liters of water from tanks holding 35,000 larvae. The yield was less than a milligram, or 35 millionths of an ounce. Much of the w...

Jefferson scientists identify gene defect leading to abnormal skin development and cancer

...lympic-sized swimming pools. This level of potency tops that of all other fish attractants, including those of salmon. To find the pheromone, the researchers extracted 8,000 liters of water from tanks holding 35,000 larvae. The yield was less than a milligram, or 35 millionths of an ounce. Much of the w...

Investment level in HIV prevention programs related to HIV incidence in the United States

...at may seem expensive, but HIV medical care easily tops $20,000 per patient per year. Therefore, funding of effective, scientifically sound HIV prevention services are likely to have a very favorable return on investment in terms of both lives and dollars saved." Holtgrave noted that the analysis was b...

Ancient amphibians evolved a bite before migrating to dry land

...adjacent skull bones -- termed "sutures" -- in the tops of these fish and amphibian skulls reveal how these extinct animals captured prey, say authors Molly J. Markey and Charles R. Marshall. "Based on experimental data obtained from living fish, we found that the shapes of sutures in the skull roof in...

How trees manage water in arid environments

... desert region, such forests are found only at the tops of mountains because only there does precipitation exceed evaporation enough for forest vegetation to survive. Understanding surface-atmosphere interactions is important to understanding a range of water resource phenomena including predictions ab...

Caribbean frogs started with a single, ancient voyage on a raft from South America

...ies are restricted to remote and isolated mountain tops or other inaccessible areas. Some species included in the study now are believed to be extinct because of habitat degradation and possibly other causes such as climate change. A recent global assessment of amphibians found that the Caribbean Island...

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