Tag: "strange" at biology news

Researchers Find How Disease-resistant Plants Recognize Bacteria

... molecular "how," the evolutionary "why" remains a strange mystery: Why would a microbe have a dominant gene that allows it to be recognized and repressed by its host? "It's as if the pathogen is in a dark room waving a flashlight and yelling 'I'm over here!' Why it does this is an ongoing puzzle," Martin sa...

Finished Your Lunch? Now Eat The Wrapper

...one daythe idea of "edible plastics" may not be as strange as it sounds....

Strange South American Fossil Mammals Found In Madagascar And India

A strange group of fossil mammals, heretofore only known in South America, has been discovered on the island of Madagascar and in India. The unexpected discoveries were announced in this week's issue of the journal Nature by an international team of resear...

Researchers Announce Discovery Of Skulls Of Bizarre Animals Showing Advanced Stage In Transition Between Dinosaurs And Birds

...haracteristics in the fossil skulls show thatthese strange creatures were actually early birds, challenging t...n a single, blunt claw. Howthe animals used these strange appendages is a mystery, but they were clearlyunable to fly. While creatures similar to Shuvuuia de...

Study Suggests Weekly Hurricane And Rainfall Patterns Are Linked To East Coast Pollution

... The gray, smelly cloud of pollution has a strange silver lining,however. While pollution makes for more rainy weekends, it also apparentlyreduces the intensity of hurricanes that hit over the weekend, such that weekendhurricanes tend to be much weaker than, say, Tuesday storms. "Hurricanes a...

Monkeys Have Numerical Abilities, Two Columbia Psychologists Report

...e, you don't have to deal with the numbersbeing in strange positions each time. We ask a lot, cognitively speaking, ofour non-human primate subjects." Over the course of learning 35 different training sets, the monkeys gotbetter and better at responding in the ascending numerical order, one to four....

Molecular Mechanism For Evolution Described

...rosses were different--they had thickveined wings, strange bristle configurations or deformed eyes or legs.The same results were obtained in wild-type flies with a drug that inhibitsHsp 90 function. When she crossed the defective offspring, she got an even greater numberof curious progeny. Lindquist and Ruth...

From Germany To The Wild West: Geologists Hunt For Evidence Of Ancient Crinoid

...d to sea stars and sea urchins. "You've got a very strange case here," said Meyer. "They're basically a plated,shelly creature that's heavier than water. It has no known flotation devices,so the burden of proof is on someone who says they did float." Alternately, some have argued that Uintacrinus stayed afl...

Harbor Branch Scientists Discover Bioluminescent Octopus

... copepods like moths to a flame, then perhaps this strange diet makes sense....

Yeast Provides Evidence For Continuous Membrane Theory

...has a delocalized tER and adispersed Golgi. "This strange organization might somehow be beneficial forthis yeast. Or it might just be an accident of evolution. At this stage we'restillguessing," he says. "But we can take advantage of the differences between thetwo yeasts to uncover the mechanisms that pr...

Trash From Crop-Processing Plant Harvested For Disease-Fighting Agents

...eticist in the department of crop sciences. "It is strange to be running off to the rain forest to yank up weird plants whenwe may already be sitting on mountainsof very useful pharmaceutical agents in our own corn and soybean fields," hesaid. "During crop processing, rawmaterials are modified by mechanical ...

The Sagan criteria for life revisited

... Callisto last week, the detection of life on that strange and distant world was not among the scientific objectives. After all, Callisto's heavily cratered surface is a frigid -220o F and is scarcely protected from the ravages of space by a extraordinarily thin CO2 atmosphere. Indeed most astrobiologists co...

Magnetic Fluids More Complex Than Previously Thought

..." the instant a strong magnet isbrought near. Such strange fluids actually exist. Called "magnetorheological" (MR)suspensions, they are used in some commercial products, such as StairMasterexercise equipment and special shock absorbers for truck seats. Theirunusual properties also have attracted the interest...

Nonexponential rates support idea of protein folding 'funnel'

...kinase and a ubiquitin mutant. "Both proteins show strange kinetics with many time scales," said MartinGruebele, a U. of I. professor of chemistry and a researcher at the university'sBeckman Institute for Advanced Science and Technology. "We interpret ourobservations in terms of downhill folding, which says ...

Digital plant doctor diagnoses plant problems

...n fact, the development of the DDIS started with a strange plant in aMonticello homeowner's backyard. When Pat Murphy had an allergic reaction to some vines he was trimming, hecalled Jefferson County Extension Director Larry Halsey to verify they wereindeed what was causing him to swell up. Unable to find a...

Brain compound's anti-aggression effects appear to reverse in monogamous male rodents

...rmally showed up,when they were nursing pups and a strange male mouse came around, putting thepups in danger of an attack. For the new study, scientists switched over to voles, which are also rodents andlook like a stout mouse or rat, but are more closely related to lemmings andmuskrats than to mice. "Voles ...

1999 Fall Meeting: Press conferences and special events

...hnology are helping scientists take a good look at strange features and puzzling behaviors on the frozen continent. These include giant ice streams, some dynamic and some placid, and snow dunes that stay in place despite fierce winds. It all affects global climate. Solar Moss Discovered Tuesday morning. Mo...

It only takes one fish to wipe out a population

... extinction would take longer. "You have the very strange situation where the least fit individual in the population is gettingall the matings-this is the reverse of Darwin's model," says Muir. "The sexual selection drives thegene into the population and the reduced viability drives the population to extinc...

Fall Meeting: updated press conferences and special events

... providing researchers their first look at certain strange features and puzzling behavior on the frozen continent that contribute to climate. These include icy tributaries that feed large frozen streams that push icebergs into the sea; long, sinuous rows of snow dunes that are subjected to fierce, constant w...

Pioneering evolutionist Ledyard Stebbins dies at age 94

...Upon his return, he told Ayala, "I think something strange is wrong with this car. When Icame out of the lecture, about 30 students were standing around looking at it." Stebbins was married in 1930 to Margaret Chamberlaine; they divorced in 1948. They had threechildren, Robert, Edith and George; George died ...

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