Tag: "creatures" at biology news

Sea squirts in sperm warfare

...squirt vying for space on the rocks. But these sea creatures have a novel weapon-they use their sperm to sabotage the eggs of other kinds of sea squirt. According to a marine biologist in California, this may be the first example of sperm competition between species. Sea squirts spend most of their life cling...

Light receptor may be key in how animals use Earth's magnetic field

...c compass that lets migratory birds and many other creatures find home using the magnetic field of Earth. The receptor -- cryptochrome -- is known to play a prominent role regulating an animal's day-and-night rhythm. Now, UI scientists report in the February issue of the Biophysical Journal that chemical expe...

Marine biology course uses Antarctica as its classroom

...the Netherlands -- traveled to Antarctica to study creatures unique to the Southern Ocean and their strategies for surviving at the extreme limits of life on earth. "This is one of the frontiers left in biology," noted instructor Adam Marsh, of the University of Southern California, in an opening...

Formosan termite may be top concern of entomologists of the new millenium, according to report

...itats, insects remain some of the most fascinating creatures on the planet, and since they pre-date humans by millions of years, their ability to survive remains of primary interest to scientists. In terms of control, however, researchers discovered to their regret that the early use of broad-spectrum insectic...

Last unidentified sport fish in North America gets a scientific name

...of the sky and mammals out of the hills, the first creatures to be discovered were those that were particularly easy to catch and shoot," Burgess said. "What1s exciting about this species is that it1s a big fish and probably will be the last sport fish to be described in North American waters." Scientific iden...

We are not alone - or are we?

... fiction are filled with advanced extraterrestrial creatures like Klingons and Wookies, Vogons and Romulans, all carrying on in a human sort of way. And while screenwriters and novelists weave stories around these characters, some people scour the heavens for signs that such highly evolved beings really are ou...

Meet the chemical that lets sea creatures thrive

...ged in diseases such as cystic fibrosis. Deep-sea creatures endure pressures several hundred times greater than that at the surface. Thehigh pressures can prevent proteins from folding up to form working enzymes, according to Paul Yanceyof Whitman College in Walla Walla, Washington. Unfolded proteins are cove...

On the floor of the sea: USGS biologists search for rare, white abalone

...Unlike more mobileanimals, abalone are slow-moving creatures confined to a small area for theirentire life. They reproduce by broadcasting their eggs and sperm into theseawater, and for fertilization to occur, the spawners need to be within threefeet of a member of the opposite sex to effectively reproduce. Wi...

Search and support for the rare white abalone is on; sex must occur with close neighbors

...eproduce effectively. Since abaloneare slow-moving creatures confined to a small area for their entire life, theyneed help in getting reestablished. A multi-agency consortium to restore the white abalone had success lastweekend when divers located a healthy bed of reproducing white abalones, located in...

From lemurs to gorillas, new book explains primate anatomy

... Ankel-Simons. "We are destroying the very creatures that we need to study to find outwho we are," she said. "This planet doesn't need us. But we need our planet tosurvive, so we have to take care of it." Ankel-Simons, who has long worked with her husband primatologist ElwynSimons, scientific...

Researchers discover genetic basis of heritable sleep disorder

... problemsrelated to human circadian rhythms." All creatures -- from bacteria to humans -- seemingly operate on a biologicalclock synchronized to a 24-hour day. This internal clock controls a variety ofdaily biochemical and behavioral cycles -- including fluctuations in sleep andwakefulness -- that are collect...

Team of 200 scientists presents new research that reveals full 'tree of life' for plants

..., scientists are only justbeginning to bring these creatures under the microscope much less to understandexactly how they interact with plant and animal ecosystems." Formed in 1994, the Green Plant Phylogeny Research Coordination Group hasengaged in a massive, collaborative analysis, requiring painstaking stud...

Catastrophic draining of huge lakes tied to ancient global cooling event

...rganisms from the same age of sediments showed the creatures lived in lesssalty water about 8,200 years ago, indicating the Laurentide lake drainage madethe Labrador Sea significantly fresher. At its peak about 20,000 years ago, the Laurentide Ice Sheet thatcovered much of North America dipped down sou...

Birds beware! Pinecones armed and dangerous

...is interesting to learn thatbirds and other forest creatures face the same dilemma when feeding on the seedsthat these cones harbor. A new study found that pine cones, which bear theprogeny of their parent tree, have evolved highly specialized ways to ward offpredators, ensuring the dispersal of their seeds. ...

Do wildlife corridors work? Studying butterflies and fragments of open space

...in part because theyoften lack the plants that the creatures need for food. Haddad and his team studied butterfly movement within 27 patches of open space.Each square patch measured 128 meters (about 140 yards) on a side. Severalpatches were connected by open habitat corridors of varying length, measuringabou...

Horseshoe crab studies providing new insight into valuable ancient creatures

...ng June, hundreds of thousands of theseprehistoric creatures emerge from the waters of Delaware Bay to lay andfertilize their eggs in the wet sand. On some beaches they will be met byscientists and volunteers who will carefully count their numbers across aseries of sampling plots. The census was designed by US...

New Areas Of High Biological Diversity Discovered

...flatworm. There is also a great diversity of these creatures in the hotspots forhigher plants: New Caledonia, Madagascar and Sumatra. The terrestrial flatworm stherefore a good indicator of biodiversity. By analysing the available literature, thebiologists also discovered three new hotspots which indicate a gr...

Endangered Species' Recovery Plans Face Comprehensive Scientific Review

...r a single species. Listings have included obscure creatures such as the Tooth Cave spider in Texas;Hawaii's state bird, the nene, or Hawaiian Goose; a wide variety of plants, suchas solano grass in California; and the national symbol, the bald eagle, whichremains a threatened species in the lower 48 states. S...

Parasites, Not Pollution, Responsible For Some Frog Deformities, As Reported In The 30 April Issue Of Science

...itic flatworms called Riberoria trematodes.These creatures burrow into the hindquarters of tadpoles where they physicallyrearrange the limb bud cells and thereby interfere with limb development. "It's about as close to using an egg beater on the limb bud cells as you canget," said Sessions. Sessions and his ...

Survival Of The Yellowstone Grizzlies, Ferns As Forest Filters And The Role Of Worms In Climate Change: The April Edition Of Ecology Is Now Available

...henext claim to fame for these little subterranean creatures is in their fecaldroppings. Johann Zaller and John Arnone at the Universitaet Basel inSwitzerland (now at Utah State University and the Desert Research Institute inReno, Nevada, respectively) conducted studies investigating plant responses toclimate ...

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