Tag: "cave" at biology news
Hurricane Ivan helps student study sinkholes
...nto the subsurface or runs in through a fissure or cave
opening and rapidly enters the aquifer. "People up and down the Shenandoah Valley get their water from aquifers," Schwartz said. "Often, these aquifers are contaminated. Sources of contamination include runoff from paved surfaces or because a good p...
Sex versus survival: A tradeoff at geographical range limits
.... This is akin to the evolutionary loss of eyes in cave
organisms where a lack of light makes visual stimuli useless. Published in the journal Proceedings of the Royal Society, the paper is co-authored by Queen's student Kathryn Neville and Queen's graduate Marcel Dorken (now at Oxford University). Evi...
Say goodbye to Rudolph and other reindeer if global warming continues
...r examined the fossil record left in Grotte XVI, a cave
above the Ceou River in the Dordogne region of Fra...rrelated the number of reindeer bones found in the cave
with summer climate data from previously published paleobotany studies of pollen counts. "As summer...
Science's Breakthrough of the Year: Salty, acidic soup could have supported life on Mars
...scovery of a species of small human relatives in a cave
on the Indonesian island of Flores suggests that modern humans and these small "hominids" shared the Earth just 18,000 years ago. The new species, Homo floresiensis, may have evolved from an earlier population of Homo erectus that was isolated on the...
Technological revolutions in sensors, robotics, and telecommunications allow new views of ocean
... similar species known to the world was found in a cave
in the Mediterranean and stands only 3 to 4 inches. They also discovered worms that induce corals to form tunnels in their skeletons, and a unique association in which shrimp use a specific type of deep sea coral as a hiding place when they are carr...
FSU anthropologist leads incredible journey through 'hobbit' brain
...tools and signs of cooperative activities in LB1's cave
despite the primitive size of its brain. Researchers verified blood vessels and other markings to make sure they were relevant brain components and not simply artifacts left by a post-mortem impact. The intricate images wer...
'Hobbit' fossil likely represents new branch on human family tree
...eologists began to unearth the Hobbit in 2003 in a cave
on the Indonesian island of Flores. Tooth wear on ...d the Hobbit's mental abilities may have been. The cave
where scientists found the Hobbit also contains remnants of stone tools, fire, and a pygmy elephant,...
Virginia Tech wildlife specialist helping to protect state's new official bat
...esterday designating the Virginia Big-Eared bat, a cave
bat listed by the state and the federal government as endangered, as the official state bat. To protect this and other species of bats, Virginia Tech Extension wildlife specialist Jim Parkhurst has written a guide that can help citizens deal with bat...
Searching the depths of the straits of Florida for disease cures
...ay Sal because of its spectacular reefs, extensive cave
systems, and abundant sea life, including the elusive whale shark. Harbor Branch scientists are attracted most to its steep topography between about 300 and 3,000 feet, which suggests that they will find the rocky walls that most commonly foster dive...
Neandertal femur suggests competition with hyenas and a shift in landscape use
...that the human femur fragment found in 2002 in the cave
of the Rochers-de-Villeneuve comes from a Neandert...rance of modern humans in Europe. In addition, the cave
was a hyena den at about the same time that the humans lived in it, the authors say. Archeological e...
DOE JGI sequences DNA from extinct cave bear
...e genomic DNA sequencing of an extinct Pleistocene cave
bear species--the kind of stuff once reserved for ...we recovered reasonable amounts of 40,000-year-old cave
bear DNA and useful information from it. We were lucky in that we had a very powerful magnet in the...
Extinct giant deer's descendant found in UK
...ith prehistoric man and is the subject of numerous cave
drawings - has its DNA in common with the fallow deer, one of the most widespread deer in the UK since their introduction by the Normans in the eleventh century. The results, published online by Nature , contradict recent morphological studies (loo...
When cave crickets go out for dinner, they really go, researchers say
..., including woodland and grassland species, around cave
entrances to protect cave
life from disturbance, including that created by encroaching urban development. "Our findings sugges...
Study in Royal Society journal on first observation of giant squid in the wild
...n and Professor JD Altringham (rspb.2005.3237) At cave
entrances throughout the temperate world, thousands of bats gather on late summer nights. This is when many bats mate, just before their winter hibernation. Females store and nourish sperm, delaying pregnancy until the spring. In the summer dominant ...
Abalones along Pacific coast may owe their huge, dinner-plate size to sea otters
...e abalones off the rocks with their paws. Or, they cave
in the shells with a rock and come back later to peel the weakened abalones off the rocks. While in some situations, predators can drive prey to become larger to better fight off attacks, in the case of abalones, getting bigger just made them more at...
New study pinpoints epicenters of Earth's imminent extinctions
...sites. These include Torrey Pines in California, a cave
in West Virginia, a pond in Mississippi, and six sites in Hawaii. The whooping crane and the recently rediscovered ivory-billed woodpecker are two spectacular American species that qualify for inclusion. Particular concentrations of sites are also fo...
Genetic analysis of cavefish reveals more about evolution
...d in many species independently, however, and each cave
species can be considered a replicate of the same ...ions of the chromosomes that had genes controlling cave
related traits. The researchers found that genetic markers for albinism in the two groups appeared i...
Most cave art the work of teens, not shamans
...dbanks and museum shelves and making sketches from cave
art to gather details about Pleistocene animal ana...nating and controversial interpretation of ancient cave
art in his new book "The Nature of Paleolithic Art." This ancient art was made during the late Pleis...
New biodiversity hotspots identified underground
Biogeographic patterns of the cave
fauna, which holds a fascination because of the bi...as of long-term high surface productivity and high cave
density. This discovery was supported by regional data from 19 other cave
areas. The authors predict...
Highlights of American Chemical Society meeting in Atlanta, March 26-30
... that dissolve limestone barriers from a collapsed cave
wall or develop fertilizers to grow plants that supply oxygen to an underground laboratory. The researchers hope to finish developing the game next year and win some new chemistry fans in the process. ( CHED 1332 , Wednesday, March 29, 3:00 p.m., OMN...