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Tag: "depth" at biology news

How satellite tracking revealed the migratory mysteries of endangered Atlantic loggerhead turtles

...tle's position, as well as other information (e.g. depth and duration of dives), to satellites orbiting above, which then relay the data by e-mail to the computer of the scientist who attached the tag. For more information about tracking sea turtles, visit http://www.seaturtle.org/tracking ...

Creating a window on 'oceans in motion'

...de, and the edge of the shelf occurs at an average depth of about 200 m (660 ft), where it falls steeply into the deep sea. Salmon and many other marine animals travel extensively along shelves. A pilot array has been successfully demonstrated by the British Columbia-based Project POST (Pacific Ocean She...

Cuttlefish masters of disguise despite colorblindness

...Hanlon's laboratory approached the problem in more depth and with a new behavioral assay. The researchers tested cuttlefish (Sepia officinalis) color perception through observing the animal's behavioral response to a series of checkerboard patterned substrates of various colors and brightnesses. They foun...

Relic of life in that Martian meteorite? A fresh look

... not--an unresolved issue. The team had a complete depth profile of the meteorite. Lead author Andrew Steele explained, "By using micro-Raman spectroscopy and a scanning electron microscope we could detect both the structure of the minerals and the forms of carbon present. We did a similar analysis on carb...

High-tech tags on marine animals yield valuable data for biologists and oceanographers

... capture an animal's location, swim speed, and the depth and duration of dives, as well as the temperature and salinity of the seawater and how that changes with depth. As the sea lions travel along the coast diving for food, their tags transmit data back to the researchers via satellite. "They are a grea...

Oceans are 70 percent shark free

...he Royal Society, Biological Series. The average depth of the oceans is 4,000m and bony fishes - relatives of cod - thrive down to around 9,000m depth. Scientists do not know why sharks are absent from the deep but suggest one possible reason could be due to lack of food. They warn their finding has...

Vaccine provides 100 percent protection against avian flu virus in animal study

...the opportunity to place new information about the depth distribution of genes in an environmental context. This approach transformed what we know about the ecology and evolution of microbial life in the ocean," he said. Earth's microbes help clean water and air and regenerate nutrients used by all life. ...

Wyoming cloud seeding experiment begins this month

...the opportunity to place new information about the depth distribution of genes in an environmental context. This approach transformed what we know about the ecology and evolution of microbial life in the ocean," he said. Earth's microbes help clean water and air and regenerate nutrients used by all life. ...

Sequencing our seas

...the opportunity to place new information about the depth distribution of genes in an environmental context. This approach transformed what we know about the ecology and evolution of microbial life in the ocean," he said. Earth's microbes help clean water and air and regenerate nutrients used by all life. ...

Cellular scale drug delivery from the inside out

...olet light trigger is that there's no limit to the depth of tissue we are able to probe ?think of an MRI." Beyond the possibilities for intercellular drug delivery, the nanospheres may provide the key to studying what takes place within a cell. Currently, scientists have difficulty introducing chemicals o...

Rare Tibetan antelope listed as endangered

...rgeons only a limited view, which can impede their depth perception and make such procedures difficult to master. "Our ultrasound device could really advance the use of minimally invasive surgery," Smith said. "By allowing surgeons to essentially see through the body to the site of interest in three dimen...

3D ultrasound device poised to advance minimally invasive surgery

...rgeons only a limited view, which can impede their depth perception and make such procedures difficult to master. "Our ultrasound device could really advance the use of minimally invasive surgery," Smith said. "By allowing surgeons to essentially see through the body to the site of interest in three dimen...

Asleep in the deep: Model helps assess ocean-injection strategy for combating greenhouse effect

...ows that liquid CO2 would have to be injected to a depth of at least 800 meters (about a half mile) and pos...liquid from rising to 300 meters---the approximate depth at which, depending upon temperature and pressure, liquid CO2 becomes a gas. One solution is to make...

Microbes under Greenland Ice may be preview of what scientists find under Mars' surface

...ion of about one microbe per cubic centimeter at a depth of several hundred meters, where the temperature - about zero degrees Celsius (32 degrees Fahrenheit) or a bit warmer - would allow just enough metabolism for them to keep alive, just as the microbes in the Greenland ice sheet are doing. ...

Worms know bad food when they smell it

...d through evolution, and opens the way for more in depth studies of how learning occurs. The study will be published in the November 10, 2005, issue of the journal Nature. One of C. elegans' fundamental behaviors is movement toward food based on its sense of smell. In the laboratory, this often means...

Wild Gorillas Handy with a Stick

...the branch, “apparently using it to test the water depth or substrate stability.?She continued walking across the pool, branch in hand, “using it as a walking stick for postural support.?/p> In a separate incident, a second adult female named Efi (who belonged to a different group) emerged from the for...

Scientists learn to predict protein-stabilizing ability of small molecules

...n a flat screen. This improved perspective enables depth perception that sharpens the visualization of the prostate and the network of nerves and tissue surrounding it. Additionally, by scaling down the motion of the robotic instruments, the surgeon can perform extremely precise, intricate movements during...

Penn Surgeons Use Completely Robotic Surgery to Successfully Treat Prostate Cancer

...n a flat screen. This improved perspective enables depth perception that sharpens the visualization of the prostate and the network of nerves and tissue surrounding it. Additionally, by scaling down the motion of the robotic instruments, the surgeon can perform extremely precise, intricate movements during...

Cattle grazing may help rather than hurt endangered species

... which work together with climate to determine the depth and duration of wetland flooding. Cattle have been grazing in the land for roughly 150 years and have become a naturalized part of the ecosystem. "In practical terms, this means that grazing may help sustain the kinds of aquatic environments endang...

U. of Colorado researcher identifies tracks of swimming dinosaur in Wyoming

...deos taken from a submersible research vessel at a depth of 430 meters (1410 feet) near Grand Bahama Island reveal that some sea lilies can creep along the ocean floor, apparently to escape from sea urchins that prey upon them. The video and related studies help paint a bigger picture of the evolution and ...

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