Sentences with phrase «studies vertebrate»

... This would be immediately useful,» says Beth Brainerd, who studies vertebrate morphology at Brown University.

Long discusses his use of autonomous robotic fish to study vertebrate biomechanics and evolution.

Zebrafish (pictured above) are often used as a model for studying vertebrate development.

The biological species concept, according to which a species is a set of interbreeding organisms, is the most widely used definition, at least by biologists who study vertebrates.

Not exact matches

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.

One previous study of a single footprint of a large tyrannosaur suggests that the beast could have been traveling as fast as 11 kilometers per hour (6.8 miles per hour), says Eric Snively, a vertebrate paleontologist at the University of Wisconsin, La Crosse.

McGlinn will work within the supportive environment of ARMI, where 54 researchers are prying into the mysteries of vertebrate regeneration by studying sharks, mice, chickens, axolotls, and zebrafish.

It killed off most of the big guys, according to a new study, and effectively shrunk most vertebrate species to the size of a human forearm or smaller.

Ecosystems left in the wake of a mass extinction that occurred about 359 million years ago (artist's representation shown) contained fish and other vertebrates that were much smaller than the species that lived before the die - off, a new study suggests.

«Our results highlight the complexity of the conservation of a group that represents an important part of the world's biodiversity, since almost 10 per cent of the planet's vertebrates are freshwater Amazonian fish,» added Dr Paulo Pompeu, Professor at the Federal University of Lavras in Brazil and another co-author of the study.

The study published yesterday in Nature Ecology and Evolution analyzed data on more than 11,000 vertebrate species, including fossil records from the past 270 million years.

«Turtles are interesting because they offer an exceptional case to understand the big evolutionary changes that occurred in vertebrate history,» explains Dr. Naoki Irie, from the RIKEN Center for Developmental Biology, who led the study.

D. horneri's facial bones were lumpy and coarse, like «mud that people have walked through a dozen times,» says study coauthor Thomas Carr, a vertebrate paleontologist at Carthage College in Kenosha, Wis..

Genetic studies show that mollusk ancestors split from the vertebrates around 1.2 billion years ago, making humans at least as closely related to shrimps, starfish, and earthworms as to octopuses.

Insects, he says, also need less food and space than vertebrate sources of protein and therefore could replace or supplement food resources that may become scarce in the future, such as fish stocks, which a recent study indicates may collapse by 2048.

The study shows that these genes are more widely conserved between honey bees and mammals, compared to either honey bees and asocial insects, or honey bees and asocial vertebrates.

This kind of wiring, described in the current issue of Science, may be present in higher vertebrates, including humans — and if so, it might provide insights for scientists studying how to treat paralysis from spinal cord injuries.

Victoria Arbour, a vertebrate paleontologist at the Royal Ontario Museum and the University of Toronto in Canada who was not involved in the research, says that the study «reasonably seals the deal» on the long - standing mystery.

The latest findings reinforce a 2016 Storz - led study published in the journal Science, which was the first to establish that vertebrate species can follow different molecular - level paths to reach the same adaptation.

«This study reveals some groups of virus have been in existence for the entire evolutionary history of the vertebrates — it transforms our understanding of virus evolution,» said Professor Eddie Holmes, of the Marie Bashir Institute for Infectious Diseases & Biosecurity at the University of Sydney.

Horner and his experienced colleagues — a structural geologist; a stratigrapher; a taphonomist (one who studies what happens to animals after they die); paleontologists specializing in vertebrate, mammalian, plant, and mollusk fossils; a molecular paleontologist; and an expert on paleomagnetism — are surveying all the fauna and flora that existed during the Hell Creek period (and that survived as fossils), the ways they interacted, and how they may have evolved.

The study is «a very welcome and very clever addition to the really limited information we have on dinosaur color and coloration patterns,» says Anne Schulp, a vertebrate paleontologist at the Naturalis Biodiversity Center in Leiden, the Netherlands, who wasn't involved in the research.

Unlike the previous studies that focused on certain species or a particular RNA virus, Skalka went broad: She and her colleagues surveyed every vertebrate genome available, 48 in all, and looked for hints of 5666 RNA viral sequences from 38 known families and nine genera that were unclassified.

The teeth came from a fossil - rich area called Cabin Fork in Wyoming and are part of a substantial collection at the University of Florida built in part by study co-author Jonathan Bloch, an associate curator of vertebrate paleontology there.

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.

It is obviously not possible to study the hearing of the early terrestrial vertebrates, which became extinct long ago.

A team of Danish researchers from Aarhus University, Aarhus University Hospital and the University of Southern Denmark therefore studied the hearing of lungfish and salamanders, which have an ear structure that is comparable to that of different kinds of early terrestrial vertebrates.

The study therefore indicates that the early terrestrial vertebrates were also able to hear prior to developing the tympanic middle ear.

The scientists studied the rib plates, so - calledcostals, of turtle shells and the ribs of various fossil and living vertebrate groups, including mammals, crocodiles and even dinosaurs.

So this is a timely book, and a fitting memorial to Everett C. Olson, one of the American coauthors, who contributed so much to the study of early land - going vertebrates.

Studying aging and its associated diseases has been challenging because existing vertebrate models (e.g., mice) are relatively long lived, while short - lived invertebrate species (e.g., yeast and worms) lack key features present in humans.

Because the Daohugou Biota and the much better studied Jehol Biota are similar in preservational mode and geographic location, but separated by tens of millions of years, they give palaeontologists an outstanding, even unique, opportunity to study changes in the fauna of this region over a significant span of geological time and an important period in vertebrate evolution.

Vertebrate evolution generally proceeds at far less than a snail's pace, making study of the process in living animals difficult at best.

«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.

protected animals» (i.e., bacteria, fungi, plants, invertebrate animals); studies on vertebrates at early stages of development (before they become?

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 legs.

In the most thorough study of its kind, scientists have now analyzed global patterns of island vertebrate extinctions and developed predictive models to help identify places where conservation interventions will provide the greatest benefits to threatened island biodiversity.

The study, «A new clade of putative plankton - feeding sharks from the Upper Cretaceous of Russia and the United States,» is published in the September issue of the Journal of Vertebrate Paleontology.

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.

Such an interpretation requires an abundance of caution, says D. Charles Deeming, a vertebrate paleontologist at the University of Lincoln in England not involved in the study.

For her PhD, Viglietti studied the fossil - rich sediments present in the Karoo, deposited during the tectonic events that created the Gondwanides, and found that the vertebrate animals in the area started to either go extinct or become less common much earlier than what was previously thought.

To find out what happens to the plastic, Katija and Choy studied larvaceans: filter - feeding animals that are distantly related to vertebrates.

This study indicates that Lingula and bony vertebrates have evolved independently and employ different mechanisms for hard tissue formation.

«Larvae have relatively simple brains compared to vertebrates, which make them good candidates for study,» said corresponding author Matthieu Louis, an assistant professor in UCSB's Department of Molecular, Cellular, and Developmental Biology.

«This is wholly unexpected,» says Stephen Brusatte, a vertebrate paleontologist at the University of Edinburgh, who wasn't involved in the study.

«Ice age vertebrates had mixed responses to climate change: New study contradicts idea of uniform population change, has significance for understanding global warming impact.»

A team of paleontologists of the Museum für Naturkunde Berlin, the State University of New York at Oswego and Brown University shows in a new study of fossil amphibians that the extraordinary regenerative capacities of modern salamanders are likely an ancient feature of four - legged vertebrates that was subsequently lost in the course of evolution.

«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.

Bradshaw and his colleagues recently surveyed studies of 212 vertebrates and found that the typical minimum viable population size required for a species to survive long - term is about 5,000 individuals.