Sentences with phrase «in vertebrates with»

Research activities are also concentrated on the identification of disease mechanisms in vertebrates with the ultimate goal to identify molecular targets and cells with therapeutical potential.

This result is surprising because, until recently, scientists believed that TRH only occurred in vertebrates with a thyroid gland, such as fish, birds, and mammals.

Not exact matches

@transframer — With all due respect, you didn't really address the issues raised regarding: 1) actual # of extant vertebrate species; 2) the fact that land inverts «breath air» and would have drowned if not accounted for on the ark; 3) that the dino genera identified in the wiki link far exceeds 50; 4) the need to account for extinct land vertebrates in addition to those still around; 5) that many marine fish would have died as their habitat's salinity dropped; 6) that your % allotments for food / water don't reflect the fact that many forms require fresh meat and / or eat disproportionately to their sizes; 7) the specific dietary / environmental constraints involved in the migration to the Ark and the return trips from Mt. Ararat.

We are swimming, along with every other vertebrate, in the sea of the Animal Kingdom.

There is no need to recall Haeckel's blasphemy about a gaseous vertebrate: suffice it to remind ourselves of the classical tradition of religious philosophy with its insistence that God can not be defined except in negatives — apoios, without quality, the ontos on, the thelon, (See Philo.

With goals at a premium, clubs spend the summer months searching far and wide for any warm - blooded vertebrate that can send the ball in the back of the net with some kind of regularWith goals at a premium, clubs spend the summer months searching far and wide for any warm - blooded vertebrate that can send the ball in the back of the net with some kind of regularwith some kind of regularity.

But a new study published in the Journal of Vertebrate Paleontology supports the idea that there was an isolated desert in the middle of Pangea with a fauna all its own.

But is it fair to equate historical constraints with defects in describing how vertebrate photoreceptors are on the back of the «inside - out» retina, shadowed by blood vessels and overlying cells?

And new research shows how genetic alterations in this odd - colored blood have helped the octopus colonize the world's wide oceans — from the deep, freezing Antarctic to the warm equatorial tropics.The iron - based protein (hemoglobin) that carries oxygen in the blood for us red - blooded vertebrates becomes ineffective when faced with low - oxygen levels.

Amphibians are the most threatened vertebrates in the world, with over 40 % at risk of extinction.

With several colleagues at the Chinese Academy of Sciences» Institute of Vertebrate Paleontology and Paleoanthropology, we were able to establish that certain key raptor dinosaurs were fully plumaged, with feathers that were entirely modern in structWith several colleagues at the Chinese Academy of Sciences» Institute of Vertebrate Paleontology and Paleoanthropology, we were able to establish that certain key raptor dinosaurs were fully plumaged, with feathers that were entirely modern in structwith feathers that were entirely modern in structure.

This is the rock band's second major contribution to science; as you'll recall, the band revolutionized vertebrate biomechanics in 1983 with their discovery that women possess legs and know how to use them.»)

Mather and Anderson delved deeper, documenting a range of qualities and activities closely associated with intelligence but previously known only in advanced vertebrates.

Like modern arthropods, C. kunmingensis had a nerve cord — which is analogous to a spinal cord in vertebrates — running throughout its body, with each one of the bead - like ganglia controlling a single pair of walking legs.

In vertebrates, motor neurons (also called motoneurons) are efferent neurons that originate in the spinal cord and synapse with muscle fibers to facilitate muscle contraction and with muscle spindles to modify proprioceptive sensitivitIn vertebrates, motor neurons (also called motoneurons) are efferent neurons that originate in the spinal cord and synapse with muscle fibers to facilitate muscle contraction and with muscle spindles to modify proprioceptive sensitivitin the spinal cord and synapse with muscle fibers to facilitate muscle contraction and with muscle spindles to modify proprioceptive sensitivity.

When Tomer compared the worm's cells with those in a vertebrate cerebral cortex, he found they were too similar to be of independent origin.

The newly discovered viruses appeared in every family or genus of RNA virus associated with vertebrate infection, including those containing human pathogens such as influenza virus.

But in March 2017, Ph.D. student Matthew Baron and vertebrate paleontologist David Norman of the University of Cambridge, along with paleobiologist Paul Barrett of the Natural History Museum in London, proposed upending that long - standing arrangement.

Since the sexual reproduction stage of malaria only occurs in insects, Poinar said in the new study that they must be considered the primary hosts of the disease, not the vertebrate animals that they infect with disease - causing protozoa.

Along with two colleagues, Vladimir Belyi and Arnold Levine, both at the Institute for Advanced Study in Princeton, New Jersey, she decided to see whether the same was true in vertebrates.

Before the consortium came together, he had participated in sequencing the genomes of two vocal learners, a songbird and a parrot, but he knew he couldn't do all of the additional sequencing and analysis work that would be required to identify genes related to vocal learning — not by himself, at least — so he teamed up with Genome 10K, a project aiming to collect genomes for 10,000 vertebrate species.

All land vertebrates carry a version of the FOXP2 gene, so some of the Oxford researchers then teamed up with colleagues from the Max Planck Institute for Evolutionary Anthropology in Germany to analyze what is unique about the variant in humans and to track how the gene had evolved in our ancestors.

Chronically elevated stress hormone levels in vertebrates interfere with the immune system, inhibit reproduction, and cause other health problems.

«It may in fact be that regeneration is ancestral, but that newts have species - specific adaptations that allow it to have such spectacular regenerative capacities compared with other vertebrates.»

«Our limited understanding of the incredible jaws of these arachnids, together with terminology that is unstandardized and even contradictory, has hindered our ability to classify them and figure out where they fit in the arachnid tree of life because, much like the cranial anatomy of vertebrates, the jaws of solifuges contain most of the relevant information,» said Lorenzo Prendini, a curator in the Museum's Division of Invertebrate Zoology and an author on the paper.

«Given the similarities in the molecules and the mechanisms involved in limb development in vertebrates and invertebrates, the fly is a very useful genetic model in which to identify new genes that potentially participate in limb development in vertebrates and their possible association with congenital diseases,» says Ana Ferreira, who has participated in the study.

Brink: No, and I ended up working with cockroaches only because as a school project in the state of Massachusetts, we have regulations on working with vertebrates.

The researchers also show that modern deforestation has left us with an estimated extinction debt of 144 vertebrate species found only in tropical forests.

In a study published in July, he and a team identified four legs on the 272 - vertebrate fossil, with hind legs nearly twice the size of the front legIn a study published in July, he and a team identified four legs on the 272 - vertebrate fossil, with hind legs nearly twice the size of the front legin July, he and a team identified four legs on the 272 - vertebrate fossil, with hind legs nearly twice the size of the front legs.

In 2014, UCSF's Nathan Young and Ralph Marcucio, working with Schneider, carried out extensive skull measurements on a variety of embryonic vertebrates and determined the point during development at which the bird face begins to diverge from those of other vertebrates.

Now, in the first report on the effects of erasing a single microRNA in a vertebrate, scientists describe mice with subtle but profound heart abnormalities.

«In Japan, many important vertebrate fossils have been discovered by amateurs because most of the land is covered with vegetation, and there are few exposures of fossil - bearing Cretaceous rocks.

Sharks» skeletons are made of cartilage, placing them along with rays and skates in a group of jawed vertebrates called cartilaginous fish.

In the new study, he and his colleagues sought to quantify those costs by mapping each corridor along with the estimated human occupancy and the environmental values, including endangered and endemic vertebrates, plant diversity, critical habitats, carbon storage, and climate - regulation services, inside a 50 - kilometer - wide band overlaid onto each corridor.

This illustration in a fish with a proven ancient lineage of a highly evolved system controlling variations in heart rate suggests that its evolution was necessarily linked to the advent of air breathing over primitive vertebrate lungs rather than the much later appearance of mammals.

Douglas Keinath, formerly the lead vertebrate zoologist with the Wyoming Natural Diversity Database at UW; and Shannon Albeke, a research scientist / eco-informaticist in the Wyoming Geographic Information Science Center, were co-authors of the paper.

With their proto - lungs and proto - limbs, lungfish represent the earliest stage in the evolution of air - breathing vertebrates.

The Norian Chinle Formation in the Southwestern United States provides a snapshot into an ancient terrestrial ecosystem with its famous petrified tree trunks and various plant and vertebrate remains.

«We were able to show salamander - like regenerative capacities in both — fossil groups that develop their limbs like the majority of modern four - legged vertebrates as well in groups with the reversed pattern of limb development seen in modern salamanders,» said Dr. Jennifer Olori of State University of New York at Oswego, co-author on the study.

One gene cluster connected with the development of the pharynx in vertebrates and acorn worms is particularly interesting.

When the researchers built an evolutionary tree from these comparative data, the amphioxus branched off earliest, followed by tunicates and larvaceans, with vertebrates being the most recent to evolve, the team reports 23 February in Nature.

Read previous Zoologger columns: Horror fly returns from the dead, Even parasitic worms have a divided society, Shrimp plays chicken with its sex change, Death by world's longest animal, Live birth, evolving before our eyes, Sympathy for the piranha, The world's most fecund vertebrate, Whale - eater's helpful sulphur - powered guests, Horror lizard squirts tears of blood, Secret to long life found... in a baby dragon

Charles Darwin thought they were relatives of mollusks; in the mid-1800s, however, Russian biologist Alexander Kowalevsky countered that the mobile tunicate larva, with its dorsal cartilaginous column resembling a spine, should be grouped with vertebrates and not clams and snails — even though the adult never develop a backbone.

The latest in birthday science proposes that the vertebrate with the longest life span yet measured is the mysterious Greenland shark.

«Gills provided vertebrates with specialist breathing organs in their head, rather than having to respire exclusively through skin all over the body.

«Our results with Drosophila exhibit surprising similarities in some respects to what we know about the regulation of resting phases in mammals, allowing for speculation as to whether the Hippo signaling pathway in neural stem cells functions in the same manner in both vertebrates and invertebrates,» stated the paper's first author Rouven Ding.

The findings are «a very important contribution in addressing who turtles are related to, as well as the evolutionary origin of the turtle shell,» says Tyler Lyson, a vertebrate paleontologist at the Denver Museum of Nature & Science who was not involved with the study.

And luckily, Cynthia Marshall Faux is both — with doctorates in veterinary medicine as well as geology (with a specialty in vertebrate paleontology).

«These findings demonstrate a single origin of gills that likely corresponds with a key stage in vertebrate evolution: when some of our earliest relatives transitioned from filtering particles out of water pumped through static bodies to actively swimming through the oceans,» says lead author Dr Andrew Gillis, a Royal Society University Research Fellow in Cambridge's Department of Zoology, and a Whitman Investigator at the Marine Biological Laboratory in Woods Hole, US.

Although many vertebrate species have diversified on the island after arriving by overwater «sweepstakes» dispersal, most — such as the flying lizards and black - crested macaque monkeys — have speciated in such a way that their geographic ranges are non-overlapping, with their ranges meeting like pieces in a jigsaw puzzle.