Sentences with phrase «tadpoles at»

Once the communities were established, we added wood frog and American toad tadpoles at constant densities.

However, a 2012 lab study conducted at Oklahoma State University by Belden's collaborator Scott McMurry did not find damage to the growth and development of tadpoles at the levels that Kuivila's research team found in waterways.

Not exact matches

Roger Shinn, who taught ethics for many years at Union Theological Seminary in New York, offers a clearly written essay, «Between Eden and Babel,» in which he explores in brief compass many of the moral issues involved as well as some of the first ethical discussions of cloning more than thirty years ago after tadpoles had been cloned.

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And we were in disbelief at the number of tadpoles we saw in a vernal pool at Moose Hill.

At this time, the embryo begins to lengthen and take on the appearance of a tadpole thanks, in part, to the development of the all - important neural tube that runs from the top to the bottom of the embryo.

Great toddler activities at the creek include wading in the water, picking up rocks and other things in the creek, watching tadpoles and other small fish, looking for newts and lizards, throwing rocks into the water.

At just under 6.5 millimeters, your baby is the size of a bean, still resembles a tadpole, and is now executing its first movements.

Although the first cloned animal - a tadpole - was created in 1952, the most publicly significant event in the history of cloning was the creation of Dolly the Sheep in 1996 at the Roslin Institute, near Edinburgh.

At Pfennig's invitation, I had arrived at the American Museum of Natural History's Southwestern Research Station in mid-July — just after the early summer monsoons had turned cattle wallows into nursery ponds and newly hatched tadpoles into cannibalAt Pfennig's invitation, I had arrived at the American Museum of Natural History's Southwestern Research Station in mid-July — just after the early summer monsoons had turned cattle wallows into nursery ponds and newly hatched tadpoles into cannibalat the American Museum of Natural History's Southwestern Research Station in mid-July — just after the early summer monsoons had turned cattle wallows into nursery ponds and newly hatched tadpoles into cannibals.

Beasley said that various species of trematodes penetrate tadpoles, sometimes killing them and at other times weakening them with tissue damage, kidney failure, or severe limb deformities when the tadpoles develop into frogs.

Only one test — in which Wilson simulated a predator by squirting water at the animals — revealed a personality shift; a tadpole that responded by freezing in place for a long time was just as likely to become a frog that resumed normal activities right away.

Tadpoles prematurely ejected into ponds are poorly equipped to flee fish, says co-author Karen Warkentin, also at Boston University, but this adaptation prevents a snake destroying an entire brood.

I was cleaning my garden pond at the end of October and came across a live tadpole.

Marc Hero, an ecologist at Griffith University in Queensland, Australia, says it is a beautiful study, demonstrating an amazing degree of developmental plasticity in tadpoles.

CANTERBURY, U.K. — Tadpoles are masters at the art of adjusting their growth to their world.

Now, developmental endocrinologist Tyrone Hayes and colleagues at the University of California, Berkeley, have raised tadpoles of the African clawed frog, Xenopus laevis — the lab rat of the amphibian world — in water with levels of atrazine varying from 0.01 to 200 parts per billion (ppb).

Robin Moore, a graduate student in conservation biology at the University of Kent at Canterbury, investigated how the tadpoles respond when they detect the scent of snakes.

But the tadpoles of the Mallorcan midwife toad have set a new record for «developmental plasticity», according to a study reported here on 15 July at the annual meeting of the Society of Conservation Biology.

Worldwide, most amphibian communities are not recovering, though earlier this year Ursina Tobler at the University of Zurich, Switzerland, showed for the first time that even in devastated populations, some tadpoles can survive infection (PLoS One, DOI: 10.1371 / journal.pone.0010927).

Back in Boston, Warkentin's team will look at the inner ear of each tadpole to confirm that the structures were fully developed when they hatched.

Headline killed tadpoles in the lab at doses used on crops, according to Belden's 2010 study.

«It suggests that tadpoles and other pond organisms are made up of human waste,» said Meredith Holgerson, a research fellow at Portland State who conducted the research at 18 Connecticut ponds when she was a Yale Ph.D. student.

The period when tadpoles are turning into frogs — called metamorphosis — is a «very vulnerable time,» said Louise Rollins - Smith, an associate professor of pathology, microbiology and immunology at Vanderbilt University who did not participate in the study.

They were less likely to school and swim along with other tadpoles (a tadpole proxy for socialization, which is impaired in autism); they weren't as good at avoiding contact with animated images projected on to the bottom of their petri dishes; they didn't habituate to startling noises (another analog to autism in people); and induced seizures were more frequent and shorter than in normal tadpoles.

«The light elements that makes up these «molecular tadpoles» are easily located by neutrons» says Dr Isabelle Grillo, at the ILL. «Moreover, small angle neutron scattering which we use at the ILL allows to characterise the self - assembled systems from the nanometre scale to tenth of micrometres and is perfectly adapted to observe the coming together of the C60 footballs» into these beautiful core structures.»

And, at least at first, they treat their young alike: After the female deposits her eggs on a leaf, the male fertilizes them, and, when the eggs hatch, he coaxes each tadpole onto his back and ferries it to a nearby pool.

To test this, Rick Relyea, a biologist at the University of Pittsburg in Pennsylvania, simulated a pond ecosystem by filling 1000 - liter tanks with well water, plankton, various tadpole species, and other organisms at the same densities found in nature.

Once tadpoles are safe in individual leaf - pools, «the work has just started,» says Kyle Summers, an evolutionary ecologist at EastCarolinaUniversity in Greenville, North Carolina.

«We have now studied the tissues from fish, frogs, and tadpoles, hair from mammals, feathers from birds, and ink from octopus and squids,» said Caitlin Colleary of Los Angeles, California, a doctoral student of geosciences in the College of Science at Virginia Tech and lead author of the study.

Despite the remarkable ability of EFTF - expressing pluripotent cells to form eye - like structures on the tadpole flank, it was not possible to record ERGs because of the small size of the induced flank eyes (flank eye volume: 0.007 ± 0.003 mm3; control eye volume: 0.021 ± 0.002 mm3, at stage 41, N = 5).

Tadpoles were allowed to swim in a solution of 5 mM BrdU (Roche Inc.) in 0.1 × MMR for 1 — 4 h at room temperature and sections stained as previously described [39].

We worked with Mattias Hagman (an earlier student and postdoc with Team Bufo), and with Dr. Andrew Hayes and Prof. Rob Capon at the University of Queensland, to measure the amount of poison in eggs, tadpoles and small toads.

Elisa is also looking at giant water - bugs as another tadpole predator.

While most of the rest of us look at toads on dry land, Michael conducts field and laboratory studies on toad tadpoles, and their interactions with native species.

Tadpoles are rare in the local Universe but common in the distant Universe, suggesting that many galaxies pass through a phase like this as they evolve (Credit: NASA, ESA, and D. Elmegreen (Vassar College), B. Elmegreen (IBM's Thomas J. Watson Research Center), J. Almeida, C. Munoz - Tunon, and M. Filho (Instituto de Astrofisica de Canarias), J. Mendez - Abreu (University of St. Andrews), J. Gallagher (University of Wisconsin - Madison), M. Rafelski (NASA Goddard Space Flight Center), and D. Ceverino (Center for Astronomy at Heidelberg University)-RRB-

Studies in bullfrogs found that triclosan disrupts the endocrine system — blocking the tadpoles» development into frogs at concentrations found in the environment.

Chinese: [Discredited at Bite the Wax Tadpole 9] The name Coca - Cola in China was first rendered as Ke - kou - ke - la The Chinese Classics These are key texts of Confucianism, the traditional state religion of feudal China.

Chinese: [Discredited at Bite the Wax Tadpole 9] The name Coca - Cola in China was first rendered as Ke - kou - ke - la

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Half - formed and not really resembling the adult version of itself, Tadpole recasts better movies as situation comedies and in so doing locates itself as a pretty nice (unoriginal) idea with few aspirations beyond inspiring a bidding war at Sundance for its furtive parsing.

At around 75 minutes, Tadpole isn't quite meaty enough to be completely memorable, but it is still an interesting film to watch, and even if the character of Oscar is drawn out of fantasyland, his observations on life and women make for some witty moments.

Nominated for the Grand Jury Prize and winner of the Director's Award at Sundance 2002, Tadpole is a short, incredulous, but entertaining film that some will see as another form of The Graduate or Rushmore, except without some of the artistic aspirations.

John Ritter (Sling Blade, Tadpole) stars as Roy Knables, a mediocre plumbing supplies salesman by day, a couch potato at all other times.

At the exciting rate that these eggs become tadpoles and then full - fledged frogs, even the youngest students with the shortest attention spans will thrill at the process unfolding in their classroom aquariuAt the exciting rate that these eggs become tadpoles and then full - fledged frogs, even the youngest students with the shortest attention spans will thrill at the process unfolding in their classroom aquariuat the process unfolding in their classroom aquarium.

Carolyn, fairly quivering with delight, splashed barefoot in the shallows and snatched at tadpoles.

Toughie, living alone in recent years in a special habitat at the Atlanta Botanical Garden, was one of several dozen Rabbs» frogs and tadpoles captured in Panama in 2005 and brought to Atlanta by biologists practicing the emerging art of «captive conservation» — trying to safeguard this (and other) tropical frog species ahead of the fungal holocaust.

In Beijing earlier this summer for a Future Earth science planning session, I wandered over to a «fitness park» that, despite being ringed by soaring residential towers, was a humane haven for elderly dancers, couples pushing strollers and children poking at tadpoles in small artificial ponds.

When I was a tadpole (relatively speaking) I went to a Boston Redevelopment Authority for a hearing at Boston's Faneuil hall about a development issue and noted the booming voices and social dominance skills of the large men at the dais.

The Tadpole will be available in blue, red, purple, black and white at iFrogz.com for $ 19.99 [divider][/ divider]