Tag: "rocks" at biology news
Ancient marine invasion sheds light on diversity
...ow if the invasion caused extinctions." Carbonate rocks
created in cool waters exist before the invasion, but during the invasion, the rocks
were formed in warmer waters. During the Ordovician, the central United States was situated on the ...
Researchers probe marine mysteries off the Alaskan coast
...l of a sudden we would find, right next to a seep, rocks
just completely covered with organisms," said Lisa Levin, a professor atScripps. "There was 100 percent cover of animal life on these rocks. On one of them that I call 'weeping rock,' the organisms were growing down instead of up, possibly to reach d...
U. of Colorado research team discovers life in Rock Glacier
...g to ice in subterranean polar lakes and living in rocks
two miles underground. Such microbes, known popularly as "extremophiles," also have been found living inside of nuclear reactors and even in the brickwork of 4,800-year-old Peruvian pyramids. Since Earth's most extreme environments are thought by...
Research team discovers first evidence of microbes living in a rock glacier
...g to ice in subterranean polar lakes and living in rocks
two miles underground. Such microbes, known popularly as "extremophiles," also have been found living inside of nuclear reactors and even in the brickwork of 4,800-year-old Peruvian pyramids. Because scientists suspect that Earth's most extreme envi...
Science's Breakthrough of the Year: Salty, acidic soup could have supported life on Mars
...cy's Mars Express orbiter point to water-weathered rocks
elsewhere on Mars. The next generation of robotic Mars explorers may attempt to bring back rock, dirt or dust samples, including hematite "blueberries" capable of preserving minute details of organisms that may have lived on Mars. Science also sa...
Latest census finds more American pika populations disappear as climate warms
...ears and usually make their homes among the broken rocks
or talus at high elevations in the mountains of th...nough to catch a glimpse of them darting among the rocks
or gathering alpine wildflowers and grasses for their winter food supply. American pikas may act as ...
Queen's discovery sheds new light on ancient temperatures
... ikaite in 700-million-year-old marine sedimentary rocks
in the Mackenzie Mountains of the Northwest Territ...nalysis to determine the precise attributes of the rocks
and further pursue the study of the ancient environment at this time in earth's history. These measu...
Story tips from the Department of Energy's Oak Ridge National Laboratory, February 2005
... After examining biomarkers and isotopic data from rocks
from western Australia and southern China, Turgeon and colleagues theorize that many areas of the world's oceans became oxygen-depleted and sulfidic. This made the oceans and atmosphere toxic to living organisms. The researchers' conclusion was suppo...
Blasted coral reefs need tender, low-cost care
...assuming there is an adequate larval supply, using rocks
for simple, low-budget, large-scale rehabilitation appears to be a viable option for restoring the structural foundation of damaged reefs." However, they also found that natural recovery was slow, highlighting the need for preventing blast fishing. ...
The oldest Homo sapiens
..., flood sediments were deposited farther south and rocks
at Kibish were eroded.) No other sediments on land have been found to record wet and dry periods that correlate so well with the same climate pattern in ocean sediments, Brown says. The new study found that the "members" or groups of rock layers ...
Hydrogen and methane provide raw energy for life at 'Lost City'
...t to seawater and serpentinization. Even more such rocks
were present on early Earth, Kelley says. "We don'...isms, with which to look for life in those ancient rocks
or on other planets. The work being published was funded by the NSF, NASA Astrobiology Institute and...
Octopuses occasionally stroll around on two arms, UC Berkeley biologists report
...Australia's Great Barrier Reef easily rolling over rocks
and other obstacles. "This behavior is very exciting," said Huffard, who first noted it five years ago in the coconut octopus but only recently was able to capture both types of octopuses on film. "This is the first underwater bipedal locomotion I kn...
Extreme life discovery in Yellowstone bodes well for astrobiologists, says Colorado U. study
...ay a bizarre group of microbes found living inside rocks
in an inhospitable geothermal environment at Wyomi...orted the microbes were discovered in the pores of rocks
in a highly acidic environment with high concentrations of metals and silicates at roughly 95 degree...
Prenatal cocaine exposure exerts subtle effects on schoolchildren
...$32.70, the cost equivalent of approximately three rocks
of crack cocaine. Of that group, one quarter were considered "heavy users." "We have found in our developmental studies of our newborns that there were some subtle differences between the groups, not the kind of things that moms and dads would notice...
Discovery of an American salamander where it shouldn't be: Korea
...ders, let's see what we can find when we turn over rocks
and logs.'" To date, the salamander has been found in 16 locations in three Korean provinces, and Wake and his colleagues have established that it differs significantly from all other lungless salamanders, which make up 70 percent of the known 535 sa...
New thermometer reveals wet conditions on earliest Earth
...ons pre-date by 400 million years the oldest known rocks
on Earth. These ancient crystals provide researche... geologic time because they survive processes that rocks
do not," said Watson. "Although they measure only a fraction of a millimeter in size, zircons hold a...
Evidence of 600-million-year old fungi-algae symbiosis discovered in marine fossils
...ation is not an issue and the 600-million-year-old rocks
also contain many fossils of coccoidal cells that are not surrounded by filaments. "So it is a loose lichen-like association," said Xiao. "The organisms are not obliged to live together." Now there is a new question. "We know that this symbiotic rela...
Infection-fighting strategy backfires in cystic fibrosis
... that forms on teeth and the "slime" that forms on rocks
in a stream. Bacteria in biofilms take on distinctly different characteristics from those floating free in a "planktonic" form. Once Pseudomonas develops a biofilm it becomes significantly more resistant to both antibiotics and the immune system. The...
Jet skis and quad bikes help scientists predict and monitor storm damage
...veness of structures such as breakwaters (piles of rocks
just off the coast) at protecting the coastline from storms. This side of the research is being carried out in the South East, which is particularly vulnerable to the effects of storms because the land here is sinking at a rate of around 1mm per year...
Virginia Tech, Nanjing Institute researchers discover half-billion year-old fossils
...have a wealth of fossils and impressions frozen in rocks
that they can study from as far back as 540 millio...l-preserved fossils form from 550 million year old rocks
of the Ediacaran Period. Shuhai Xiao, geoscientist from Virginia Tech, with Bing Shen, a Virginia Te...
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