Sentences with phrase «by vertebrate»

The AP3 is directed by vertebrate paleontologists from Carnegie Museum of Natural History, Ohio University, The University of Texas at Austin, and the American Museum of Natural History.

This suggests that brain sleep dates back at least to the evolution of the amniotes, that is, to the beginning of the colonization of terrestrial landmass by vertebrate animals.

Led by vertebrate paleontologist Xiaolin Wang of the Chinese Academy of Sciences in Beijing, the scientists uncovered at least 215 eggs in a block of sandstone about 3 meters square.

Hornworm moth larvae respond aggressively when pecked by vertebrate predators such as birds, but it wasn't clear whether they reacted toward invertebrate predators in a similar fashion — and whether invertebrates, too, could have played a role in the evolution of caterpillar defenses.

Not exact matches

The term macroevolution, by contrast, refers to the origin of new species and divisions of the taxonomic hierarchy above the species level, and also to the origin of complex adaptations, such as the vertebrate eye.

(Vertebrates and canines are historical entities, but conceptual facts on the order of if it's a canine, then it's a vertebrate are by nature timeless and ahistorical, holding always and everywhere, even when canines and vertebrates aVertebrates and canines are historical entities, but conceptual facts on the order of if it's a canine, then it's a vertebrate are by nature timeless and ahistorical, holding always and everywhere, even when canines and vertebrates avertebrates are absent.)

Yet there is no trace of communication by learned symbolic languages among reptiles, of hair or feathers among amphibians, of the auditory apparatus of land vertebrates, or of legs or wings, among the fish.

2) It appears that god only asked to take the land vertebrates on the ark, the inverts died or survived by themselves by clinging to floating stuff, flying, using air pockets in earth or something like this.

There is no such «direct» evolution: animals, bacteria, and algae have a common ancestor from which they have diverged, as can be shown by aligning and comparing amino acid sequences of proteins and nucleotide sequences of homologous ribosomal RNA molecules that are found in both bacteria and vertebrates.

In most vertebrates and some mollusks, the eye works by allowing light to enter it and project onto a light - sensitive panel of cells known as the retina at the rear of the eye, where the light is detected and converted into electrical signals.

Materials provided by Society of Vertebrate Paleontology.

Found in the sensory nerve cells of vertebrates, TRPM8 typically sends a sensation of cold to the brain when activated by low temperatures.

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.

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?

Yet in waters from the Sea of Japan (aka East Sea) to the Black Sea, jellies today are thriving as many of their marine vertebrate and invertebrate competitors are eliminated by overfishing, dead zones and other human impacts.

This is typical Rothschild: considering the bends not as a human ailment, first documented by a miner in 1841, but as a vertebrate's disease, one that can be tracked backward through more than 200 million years of mammalian evolution.

Over the last few decades, scientists have observed cannibalism — defined by Schutt as eating all or part of another individual of the same species — among all major groups of vertebrates.

Fugu — the poisonous puffer fish sought after by brave suchi - eaters — has the smallest known vertebrate genome.

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.

By comparing the genomes of 203 vertebrates, they first traced the origin of KZFPs back to a common ancestor of tetrapods (four - legged animals) and coelacanth, a fish that evolved over 400 million years ago.

It's run by an artificial brain modeled on the vertebrate or mammalian brain.

A 300 - million - year - old fossil mystery has been solved by a research team led by the University of Leicester, which has identified that the ancient «Tully Monster» was a vertebrate — due to the unique characteristics of its eyes.

Using a new analytical method, they identified which vertebrate species the bugs had parasitized by isolating fragments of DNA left over from blood meals.

We most easily detect a vertebrate, particularly a mammal, and assess its intentions by looking at its face.

The first group of prints — a 395 - million - year - old track created by a four - legged land vertebrate — made the cover of Nature last January.

Last week at the annual SVP meeting here, vertebrate paleontologist Michael Caldwell of the University of Alberta in Edmonton, Canada, and colleagues presented their own observations of the specimen, rebutting Martill's paper point by point to a standing - room - only crowd.

A spider that feeds indirectly on vertebrate blood by choosing female mosquitoes as prey.

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.

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.

In both vertebrate and invertebrate nervous systems, neurons are connected to each other by chemical or electrical synapses.

Describing the find at a meeting of the Society for Vertebrate Paleontology in Pittsburgh, Pennsylvania, last month, Shimada speculated that the ancient tooth might have been washed downstream to Nebraska by floods, or carried as a ritual object by early humans.

A new paper published in latest issue of the Journal of Vertebrate Paleontology shows that several of these Jurassic sites are linked together by shared species and can be recognized as representing a single fossil fauna and flora, containing superbly preserved specimens of a diverse group of amphibian, mammal, and reptile species.

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.

«This is a major breakthrough and a beautiful example of convergent evolution where vertebrates at least five times have independently evolved» this ability «by modifying different cell types to serve the same function.»

The extinction that ended the Devonian Era 359 million years ago created opportunities quickly exploited by a formerly rare and unremarkable group of fish that went on to become — in terms of the sheer number of species — the most successful vertebrates (backboned animals) on the planet today: the ray - finned fish.

Amphibian chytridiomycosis, caused by infection with the Batrachochytrium dendrobatidis fungus, is the most devastating vertebrate disease on record.

Growth hormone is a polypeptide hormone synthesised and secreted by the anterior pituitary gland which stimulates growth and cell reproduction in humans and other vertebrate animals.

For the first time, researchers have investigated the cheetah's extraordinary sensory abilities by analyzing the speedy animal's inner ear, an organ that is essential for maintaining body balance and adapting head posture during movement in most vertebrates.

Recent fossil discoveries have resonated throughout Chinese culture, as evidenced by the giant reconstruction of Sinraptor posed outside the Institute of Vertebrate Paleontology and Paleoanthropology in Beijing.

The mammals are the class of vertebrate animals characterized by the production of milk in females for the nourishment of young, from mammary glands present on most species and specialized skin glands in monotremes that seep or ooze milk; the presence of hair or fur; specialized teeth; three minute bones within the ear; the presence of a neocortex region in the brain; and endothermic or «warm - blooded» bodies.

«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.

While some vertebrates are ticked off by a combination of signals, others seem to have a shorter fuse: certain birds, for example, can be provoked by a mere tuft of feathers attached to a perch.

The species description was published in the Journal of Vertebrate Paleontology by University of Utah, University of Washington and Burke Museum, and The Field Museum.

A report by the Washington Department of Natural Resources identifies 66 vertebrates that feed on salmon.

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.

A team led by Xing Xu at the Institute of Vertebrate Paleontology and Paleoanthropology in Beijing used computer software to examine evolutionary relationships among early birds and related dinosaurs, based on 374 skeletal characteristics.

Funding was provided by the Cornell Center for Vertebrate Genomics, Zweig Memorial Fund and Morris Animal Foundation.

The vertebrate brain appears to be hard - wired at birth to comprehend a 3D world — and is flummoxed by geometries that don't make sense.

A Greenland shark has lived at least 272 years, making the species the longest - lived vertebrate in the world — smashing the previous record held by a 211 - year - old bowhead whale.

Generations of biology students have been convinced — in part because of drawings done 123 years ago by the German biologist Ernst Haeckel — that vertebrate embryos of different animals pass through an identical stage of development.