Sentences with phrase «biologists study animal»

Not exact matches

John Eppig, a reproductive biologist at Jackson Laboratory in Bar Harbor, Maine raised the concern that no animal studies with a control group have been done — a standard practice with experimental medical procedures — yet somehow the procedure is being tried on humans.

Only a few biologists have actually lived with animals in their native habitats in order to study their behavior there, and the results are not always recognized as «scientific», since they are not readily repeatable in the fashion required by science.

The new study offers «yet another piece of information» that selecting for changes in behavior can trigger a host of other changes in domesticated animals, says Greger Larson, an evolutionary biologist at the University of Oxford in the United Kingdom, who was not involved with the work.

Yet, as Collins, a biologist at the University of Miami's College of Arts and Sciences who studies the mechanics of neural circuits, notes, «Even the simplest animal with the simplest neural circuits have so much going on.»

The biologists behind the new research findings synthesized decades of studies on fossil beetles, focusing on beetles associated with the dung of large animals in the past or with woodlands and trees.

«The findings have implications for how we understand animal evolution,» said Scripps marine biologist Greg Rouse, the lead author of the study.

The fencing, built a decade ago, was a simple experiment to keep out grazing animals and allow biologists to study the undisturbed area.

Dennis Turner, an evolutionary biologist who studies companion animals at the Institute for Applied Ethology and Animal Psychology in Zurich, Switzerland, says the experiment only loosely resembles real - life adoptions, so more work needs to be done before he's convinced.

Evolutionary biologist Dawkins delves into his earliest adventures as a young boy in Africa, efforts to fit in at English boarding schools and later animal - behavior studies.

A new study by University of Arizona biologists helps explain why different groups of animals differ dramatically in their number of species, and how this is related to differences in their body forms and ways of life.

Peter Franek says that the scientists clearly were able to make out the calls of the fin whales to such detail that it might be useful even to the biologists who wish to study movement and sound communication patterns of these majestic animals.

Studying 25 female leatherback turtles, biologists recently finished the first cross-Atlantic tracking of these animals.

«We don't think the matter is settled,» says one of the signers, cell biologist Richard Luben of the University of California, Riverside, citing the leukemia studies and cellular and animal data.

A critical assumption of any research is that the animals being studied represent their entire population,» said M. Brad Eppard, a fisheries biologist with the Portland District of the U.S. Army Corps of Engineers and a co-author on the paper.

In a new study published in the Dec. 11 issue of Current Biology, marine biologist Greg Rouse at Scripps Institution of Oceanography at UC San Diego and his collaborators reported a new twist to the Osedax story, revealing an evolutionary oddity unlike any other in the animal kingdom.

And the trouble with extrapolating so much from mouse studies is that «nobody has actually shown over the long term how long these quote un-quote improvements persist, and we don't know whether it's broadly improving aspects of aging or it's specific to certain tissues,» said Matt Kaeberlein, a biologist who studies aging in dogs and other animal models at the University of Washington.

Working with two elderly captive Guiana dolphins at the Dolphinarium of Allwetterzoo Münster in Germany, researchers began to suspect that the animals might have electroreceptors «because you can see dark pits on their snouts,» says Wolf Hanke, a sensory biologist at the University of Rostock in Germany and one of the study's authors.

Biologists have used Bookstein's methods to study a whole bestiary of animals: bats, fishes, midges, mice, coral, shrews, and even pinworms.

Earlier studies looked at many genes from a few animals or a few genes from many animals, but Brown University biologist Casey Dunn and his team cast a wider net, sampling DNA from all across the genomes of 71 different animals.

«This is the closest thing to a smoking gun we've ever had,» says Greger Larson, an evolutionary biologist at the University of Oxford in the United Kingdom who has studied the domestication of pigs, dogs, and other animals.

Black bears in Yosemite National Park that don't seek out human foods subsist primarily on plants and nuts, according to a study conducted by biologists at UC San Diego who also found that ants and other sources of animal protein, such as mule deer, make up only a small fraction of the bears» annual diet.

Ever since the time of Darwin, biologists have studied the choices animals make when looking for a partner, and why.

To study the effects of intense hunting of sperm whales in the Pacific Ocean, Whitehead and his wife, marine biologist Linda Weilgart, collected data on the whales» vocalizations and tail scars, which may indicate how well an animal fends off predators.

While studying biology in college, she realized that she could blend her passion for deep dark places with her love of animals by becoming a cave biologist.

Our results suggest that in addition to «pure» species and populations, hybrids between protected animals and non-protected ones may deserve protection,» said Robert Wayne, a biologist at University of California Los Angeles and senior author of the study.

Many migration studies are done in short - lived species like songbirds, or by comparing a young bird to an older bird, said UMD biologist Thomas Mueller, an expert on animal migration and the study's lead scientist.

In a new study, UC Santa Barbara marine biologists applied existing technology in a novel way to monitor animals coming into and going out of a lagoon via a deep channel dredged during World War II.

«It's a common fact that animals in good shape nutritionally are much more able to withstand change and stress,» says marine biologist Moby Solangi, executive director of the Institute for Marine Mammal Studies in Gulfport, Mississippi.

After more than a decade of studying snowshoe hares in the Rocky Mountains, L. Scott Mills, a wildlife biologist at the University of Montana, Missoula, noticed that the animals were beginning to stick out more than usual.

That means the animals move through the corridors and breed with other populations, says study author Stephen Mech, now a conservation biologist at the University of Memphis in Tennessee.

«In the rainforest, many animals die each and every day, but it's really rare to find a carcass,» says Sébastien Calvignac - Spencer, an evolutionary biologist at the Robert Koch Institute in Berlin and lead author of the new study.

«We've known for some time that the population sizes of these animals fluctuated throughout the last ice age,» said evolutionary biologist Beth Shapiro of the University of California Santa Cruz, who was also a part of this study.

As a result, adds Robert Dudley, an organismal biologist at UC Berkeley, even more engineers are now studying animal flight than biologists.

Few animals are able to live exclusively on fungi,» says study co-author Volker Witte, a biologist at Ludwig Maximilians University in Munich.

It has been proposed they heavily impacted the Central Highland forests,» says Steve Goodman, MacArthur Field Biologist at The Field Museum in Chicago, who co-authored the study and has been studying Malagasy animals for thirty years.

«There really seems to be a whole mix of animals playing a role in transmission,» says mathematical biologist Sebastian Funk, one of the authors of the study.

The researcher reminds us that the study of the modelling, organisation and coordination of the animal behaviour is a clear example of multidisciplinary collaboration: «biologists participate to perform the experiments in the laboratory and provide real data, in coordination with mathematicians and physicists who propose and solve the models.»

The finding suggests that saliva exchange could play yet - undiscovered roles in many other animals, from birds to humans, says Adria LeBoeuf, an evolutionary biologist at the University of Lausanne in Switzerland, and the study's lead author.

While biologists have tracked how global warming has altered the developmental, migration, timing and other behavior in plants and animals, what makes this study unusual is the physical changes in the bees, said study co-author Candace Galen at the University of Missouri.

So are the biologists who study hormone systems in non-human animals.

Nagoya, Japan (Scicasts)-- A group of animal biologists and chemists at the Institute of Transformative Bio-Molecules (ITbM), Nagoya University, has used high throughput chemical screening of existing drugs and bioactive compounds to explore their effect on circadian rhythms, according to a study reported in the journal EMBO Molecular Medicine.

«She strategically picked an organism to gain insight into early animal evolution and systematically studied it,» said Dianne Newman, a biologist at the California Institute of Technology in Pasadena, who studies how bacteria coevolve with their environment.

For the spiders in the study, which are helping biologists trace the evolutionary history of one of the most prolific groups of animals on the planet, that means your kitchen window.

The idea that dogs follow the pack leader first began to take shape in the 1920s when ethologists (biologists who study animal behavior) discovered pecking orders in chicken coops.

Studies show that the animals caught by predators are generally weaker and more diseased than those killed by manmade sources.6, 7 One study found that «birds killed by cats had significantly lower mass, fat scores, and pectoral muscle mass scores» than birds of the same species killed by cars or windows.8 These studies indicate that cats are catching what some biologists refer to as the «doomed surplus» 9 — animals who would not have lived, and so whose death does not affect overall population Studies show that the animals caught by predators are generally weaker and more diseased than those killed by manmade sources.6, 7 One study found that «birds killed by cats had significantly lower mass, fat scores, and pectoral muscle mass scores» than birds of the same species killed by cars or windows.8 These studies indicate that cats are catching what some biologists refer to as the «doomed surplus» 9 — animals who would not have lived, and so whose death does not affect overall population studies indicate that cats are catching what some biologists refer to as the «doomed surplus» 9 — animals who would not have lived, and so whose death does not affect overall population levels.

Then, each animal is studied in the same academic manner as a biologist or ecologist.

Indeed, my first thought was how much it resembled Madagascar, an island I haven't been to yet, but which I've studied quite a bit through the work of biologists examining what's left of its unique array of animals and plants.

The comprehensive survey found the sites that lost pikas were on average drier and warmer and at lower latitudes than sites where the animals remain, said Erik Beever, a U.S. Geological Survey biologist based in Corvallis, Ore., and the study's lead author.

While biologists have tracked how global warming has altered the developmental, migration, timing and other behavior in plants and animals, what makes this study unusual is the physical changes in the bees, said study co-author Candace Galen at the University of Missouri.

The new instrumentation also gives new opportunities for biologists studying marine animals and meteorologists quantifying rainfall.