Tag: "rarity" at biology news

Survival of the rarest: Fruit flies shed light on the evolution of behavior

...iour of fruit flies, has identified the benefit of rarity in populations of fruit flies with two different v... population are more likely to survive since their rarity makes them less conspicuous to predators. However, to date we haven't understood this type of surviv...

Rare soft-shell turtle, nesting ground found in Cambodia

...ff and local fishing communities and explained the rarity of the turtle species and its importance for conservation. For the future protection of the species, CI, WWF and the Cambodian Turtle Conservation Team plan to employ local community members to protect nesting beaches for the turtles and to conduc...

Moonlighting enzyme linked to neurodegenerative disease

...y the National Institutes of Health because of its rarity -- affecting one in 40,000. It is associated with a deficiency of frataxin, a protein that balances iron in mitochondria, which are the structures that convert nutrients into energy for cells. A new Mayo Clinic study published in the April issue of t...

ASU researchers test antibacterial effects of healing clays

...What makes this award even more interesting is the rarity for a geochemist to net a NIH grant. National Center encourages alternative studies The National Center for Complementary and Alternative Medicine at NIH was established in 1998 for just this kind of study. One of the 27 Institutes making up NI...

A human taste for rarity spells disaster for endangered species

... their colleagues incorporated the assumption that rarity increases a species' value into a classic model of... a positive feedback loop between exploitation and rarity that drives a species into an extinction vortex. This phenomenon, the authors explain, resembles a...

Tyrannosaur survivorship -- tough times for teens

...f these findings is that the previously mysterious rarity of sub-adult tyrannosaur specimens is due to their...curve also provides a possible explanation for the rarity of individual giants--just two per cent of the population lived long enough to attain maximal size a...

The world's deepest dinosaur finding - 2256 metres below the seabed

... certain that the record-breaking knucklebone is a rarity down there in the abyss. In fact, the old North Sea land was once a huge area where big rivers meandered through dry plains. Now the landscape has been compressed to form a pattern of fossil alluvial sand between banks of red shale. ...

From one cell, many possible cures

...slowed by ethical controversy -- as well as by the rarity of the extraordinary cells themselves. That could be about to change: A Florida State University research team in Tallahassee, Fla. reports that it has designed a biomedical device that will allow stem cells derived from adult bone marrow to be grow...

International Team Determines Geographic Origin of Leprosy

...w SNPs ?only one in every 28,400 letter pairs. The rarity of SNPs is an indication of extreme genetic stability: all the strains of leprosy throughout the world are essentially identical. The discovery of the four SNP types could help health officials better understand leprosy in present day human populati...

Marburg haemorrhagic fever in Angola update

... Marburg haemorrhagic fever difficult: the extreme rarity of this disease and its similarity to other diseases seen in countries where deaths from infectious diseases are common. Neither the source nor the date of the initial cases in Angola can be presently identified with any certainty. The number of cas...

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