Tag: "locate" at biology news
Famous Galpagos tortoise, Lonesome George, may not be alone
..., the researchers hope that thorough sampling will locate
a genetically pure Pinta tortoise. The authors speculate that, in the event additional individuals of pure Pinta ancestry are discovered, a captive breeding and repatriation program could be set up for species recovery. "It will take a team of abo...
Bat flight generates complex aerodynamic tracks
...euver in flight is accentuated by their ability to locate
prey using an advanced echo-location system, which is basically a sonar operated by ultrasound. The authors noted that bat wings are very different from those of birds because of their separate evolutionary paths to flight. "Instead of feathers ...
New research shows sharks use their noses and bodies to locate smells
...biologists, sharks can not use just their noses to locate
prey; they also need their skin specifically a lo...ensional structures used by many animal species to locate
food, mates, and home sites. However, odor itself has no directional properties, so animals must use...
Moths mimic sounds to survive
...study. In response to the sonar that bats use to locate
prey, the tiger moths make ultrasonic clicks of their own. They broadcast the clicks from a paired set of structures called tymbals. Many species of tiger moth use the tymbals to make specific sounds that warn the bat of their bad taste. Other spe...
Screening approach leads to discovery of gene linked to breast cancer
...nges in thousands of genes at a time enable us to locate
dozens or even hundreds of gene abnormalities in cancer cells. The challenge is to winnow this group to find the genes most centrally involved in cancer initiation and maintenance. "In the current study, we used several complementary approaches to ...
Outwitting pesky parasites
...ous studies of soybean crops helped researchers to locate
genes associated with root-knot nematode resistance, University of Georgia scientists recently identified single nucleotide polymorphisms (SNPs), slight variations in the DNA, nearby genetic regions that code root-knot nematode resistance. After link...
Identified main genetic variants involved in response to HIV
...ivation of the immune system so that it is able to locate
and destroys cells infected by HIV. This study has also identified a third genetic variation involved in immune damage of patients, particularly in a gene encoding a protein which seemingly participates in viral replication, and is also located in ch...
Brain's 'hearing center' may reorganize after implant of cochlear device
...ctrical stimulation to the ear allowed the team to locate
where in the brains auditory cortex various frequencies were processed and come up with a map for these tones. Their results demonstrated that in people who had cochlear implants for at least three months, normal frequency organization was somewhat r...
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