creatures 2 1

Tag: "creatures" at biology news

Spleen may be source of versatile stem cells

...wever, theprotein has an intriguing function: when creatures like newtsregenerate a lost limb or tail, production of Hox11 is radicallyincreased.As reported in their SAGE KE article, the MGH team did find that Hox11was produced in the spleens of adult mice by the same cells thatregenerated the islets in the ea...

Falling ants glide back to trunk to avoid dangers of forest floor

...Dudley, a UC Berkeley expert on flying and gliding creatures ranging from hummingbirds and lizards to moths and bees. "Apparently, it's fairly common among a lot of tropical canopy ants." Yanoviak, Dudley, a professor of integrative biology at UC Berkeley, and zoologist Michael E. Kaspari, an ant ecologist at...

Vampire bats keep out of trouble by running

... hind legs as a source of power, these exceptional creatures power their run with their forelimbs," Hermanson explains. Getting most of the push from their long forelimbs -- actually their wings and therefore very strong -- the bats run more like a small gorilla than a comparable four-legged creature like a mo...

Low level of extinction during ice age linked to adaptability

... and extinction in brachiopods, simple shelled sea creatures that were abundant and well-fossilized during the Paleozoic. He constructed a database that charted latitudinal patterns of evolution and extinction through the late Paleozoic. "This database is the first ever; no other database of this kind exists ...

Super predators and mass extinctions

...on, which in turn leads to its own demise. The few creatures that survive the predatory apocalypse gradually mutate to fill the existing ecological niches - and the cycle begins again. The period of the cycle depends on mutation rates in the model. The lower the mutation rate, the longer the periods between s...

Scientists journey to southern Africa to unravel the secret world of elephant communication

...ade of wildlife, and to prevent one of these large creatures from invading tents or destroying delicate electro...lin and others have already established that small creatures use seismic communication," Larom observes. "The elephant studies, if they prove out the seismic hyp...

Oceans more vulnerable to agricultural runoff than previously thought, study finds

...leted dead zone at the bottom of the sea where few creatures can survive. A massive dead zone appears every summer in the Gulf of Mexico off the coast of Louisiana and Texas. Scientists believe that agricultural runoff from the Mississippi River plays a pivotal role in creating this annual dead zone, which mea...

Primates on the brink

...n. Without immediate steps to protect these unique creatures and their habitat, we will lose more of our planet's natural heritage forever." The World's 25 Most Endangered Primates list, compiled at the 20th Congress of the International Primatological Society in Turin, Italy, follows similar reports in 2000 ...

Researchers Identify Cause of Early Bird Sleep Disorder

...ircadian rhythms are established and maintained in creatures that have evolved along very different paths. As for the affected individuals, Ptacek said most are able to live normal lives, and some are proud of being able to arise before dawn and get a lot done while everything is quiet. A few, however, are co...

Census of Marine Life explorers surprised by diversity, density of Arctic creatures

...(UAF), and chief scientist on the voyage. "Several creatures brought aboard the Healy are unfamiliar to expedit...the ocean floor miniscule meiofauna, single-celled creatures less than half a millimeter long, the most successful and numerous animal in the southern sea. They ...

Researchers reveal secrets of flying snakes

...e Socha, Ph.D., who has been studying these unique creatures for the past eight years. With the help of colleagues Michael LaBarbera, professor of organismal biology and anatomy at Chicago, and Tony O'Dempsey, an expert in photogrammetry, Socha used 3-D flight information from the synchronized recordings of t...

Revueltosaurus skeleton unearthed at Petrified Forest upsets dinosaur tale

...d of the Triassic Period. The animal, one of many creatures from the Late Triassic known only from their teeth...amp, had found but not identified teeth from these creatures in the early 1930s. Unknowingly, Hunt, Padian and Camp had also found other bones of Revueltosaurus,...

Agilent Technologies introduces high-capacity human protein removal system for proteomics research

...d of the Triassic Period. The animal, one of many creatures from the Late Triassic known only from their teeth...amp, had found but not identified teeth from these creatures in the early 1930s. Unknowingly, Hunt, Padian and Camp had also found other bones of Revueltosaurus,...

Researchers use 3-D imaging system to unveil swimming behavior of microscopic plankton

...le that we can capture the reflection of such tiny creatures in three dimensions from two meters away." The divers frequented the underwater setup to sample the animals, reorient the transducer and measure the vertical currents using various methods, including releasing and tracking fluorescent dye and with s...

Fluorescing lab worms signal longer life spans

...s believe the life span of humans and other living creatures is determined by a combination of genetic, environmental and chance factors. Twin studies in humans have suggested that genes are only about 15 percent to 30 percent responsible for a person's age at death, Rea said. The CU-Boulder researchers attri...

Gifts from the sea

...its expertise in collecting and maintaining marine creatures for study; and its casual, collaborative environme...in are less tangled than those in humans and other creatures that must cram their nerves through relatively small openings in the skull. The human vestibular (b...

Secrets of the deep may hold key to life on other planets

...t to understand extreme sea creaturesExtraordinary creatures who inhabit extreme underwater conditions are bein...ues to how life could exist onother planets. The creatures live around hydrothermal vents - incredibly hot environments in the deep sea - and are unique becaus...

Structures of marine toxins provide insight into their effectiveness as cancer drugs

Vibrantly colored creatures from the depths of the South Pacific Ocean harbor toxins that potentially can act as powerful anti-cancer drugs, according to research findings from University of Wisconsin-Madison biochemists and their Italian colleagues. The research team has defi...

Study: Predatory dinosaurs had bird-like pulmonary system

...n-like portrait of meat-eaters such as T. rex: The creatures may have had feathers, incubated their eggs, grown... dinosaurs as habitually warm-blooded animals. The creatures probably had a more complex strategy, falling somewhere between what scientists define as cold- and ...

Insight into our sight: A new view on the evolution of the eye lens

...rtebrate lineage, the researchers found that these creatures possess a single crystallin gene, which is expressed in its primitive light-sensing system. The identification of the sea squirt's crystallin strongly suggests that it is the single gene from which the vertebrate ?-crystallins evolved. The researche...

1 2 3 4