Sentences with phrase «produced by the female»

Dana Pfefferle of the German Primate Center in Göttingen and her colleagues recorded ejaculatory and non-ejaculatory calls produced by females at La Forêt des Singes, a primate park at Rocamadour in France where Barbary macaques roam freely.

Yet only a small number of egg cells are produced by the female body, so they are the limiting factor in many aspects of reproductive science.

The first collection of richly colored knits is made entirely in baby alpaca fur and produced by female inmates in a Peruvian prison, while the upcoming range was made using silk by women in prisons in Thailand.

Dog appeasing pheromone is a chemical that is produced by female dogs as they feed their puppies.

Also, the antigen is only produced by female worms, so an infection of only male heartworms will also give a false negative.

He calls the Ogden show «an opportunity to look at some of the best examples of work produced by female artists.»

Not exact matches

Lions Gate Entertainment (No. 54) has had box office success with two major franchises: The Twilight series (produced by Summit Entertainment, a Lions Gate subsidiary) and Hunger Games, which have much in common as they are both film adaptations of bestselling young adult book series, are fantastical (one is about vampires and the other about a futuristic dystopia), and are anchored by a dynamic young female character (portrayed by Kristen Stewart in Twilight, Jennifer Lawrence in The Hunger Games).

The 15th annual W100 is the ranking of Canada's Top Female Entrepreneurs, produced by PROFIT and Chatelaine.

Alternatively, males produce no flower and females that have been fertilized by pollen will produce 50 % or less of the normal cannabinoid value achieved in a female flower - only plant.

While female armpit odors were generally favored over male, the very best effects were produced by sniffing the grannies.

Just as the most intense energy of the male and the most enduring persistence of the female principle form the unlimited power of nature, as love and life consist in separating and uniting, in restlessness and steadiness, in energy and being, so the creative and the receptive forces work to produce the perfect creation of genius: the more matter is formed by the creative force, the more intense the struggle, the greater the effect.

This will be supported by displays of intensively recorded young bulls and females from the Kaiuroo seedstock herd, which bear out the breeding objective of producing highly reproductive, fast growing animals which consistently comply with the organic market.

The program of prenatal and infancy home visiting by nurses described above produced treatment - control differences in 15 - year - olds» arrests and reductions in arrests and convictions among 19 - year - old females.32, 33 In a subsequent trial with a large sample of urban African - Americans the program produced treatment impacts on 12 - year - olds» use of substances and internalizing disorders.34

The female breast contains cells called estrogen receptors which are stimulated by the presence of estrogen (or xeno - estrogens) into producing more mammary tissue.

Despite a surge of interest in running for office by female candidates, the November elections may not produce a similar surge in the number of women in Congress.

The paste is the potent secretion produced by the perineal glands of both male and female civets.

In sea turtles, sex is determined by the nest's environment: warmer temperatures produce females and cooler temperatures produce males.

Officials argue that hunting has little effect on populations because many wolves die anyway of starvation or disease, and females can compensate by producing more young.

By presenting the females with different combinations of fluorescent and non-fluorescent males (i.e., fluorescent males together with non-fluorescent males that produced HP - I, versus fluorescent males together with non-fluorescent males that lacked HP - I), the researchers were able to determine when the females were willing to accept only one mate — and when they were willing to play the field.

Larger Pacific Striped octopus; image courtesy of Richard Ross Of the hundreds of known octopus species, most are anti-social, practice safe sex (to avoid getting eaten by a mate) and lay just one clutch of eggs before dying.The poorly understood larger Pacific striped octopus, however, seems to break from these conventions: They are somewhat social, they mate face - to - face, and the females produce multiple batches of offspring.The octopus is so rare that science has yet to even give it a formal Latin name.

Using a mouse model of HSV - 1 as well as autopsied samples of human adult and fetal tissues, investigators from Dartmouth College's Geisel School of Medicine found that antibodies against HSV - 1 produced by adult women or female mice could travel to the nervous systems of their yet unborn babies, preventing the development and spread of infection during birth.

Additionally, genes for long organs were associated with genes for faster remating by females, which further increases competition among sperm and hence the advantage to males producing longer sperm.

Theory on resolution of parental conflict over care provides a framework to explain how such a pattern may emerge: when, for the same cost to the parents, the benefits derived by the offspring produced from the care of each parent are unequal, then the parents contributing less in absolute terms (the lighter females) may not be able to compensate.

Males of many animal species compete for mates, either by producing showy ornaments to attract females, such as the plumes and bright colours of male Birds of Paradise, or, like stags and elephant seals, by fighting with other males for access to mates.

Male wasps normally seek out females by sniffing for their pheromones, signaling chemicals that they produce.

But the flowers that Gaskett studies, called tongue orchids, can produce a molecule that precisely mimics the pheromone made by the females of the species Lissopimpla excelsa, commonly known as dupe wasps.

The effect seems to also hold for other animals: In 2003, a research team led by anthropologist Joan Silk of the University of California, Los Angeles, reported that female baboons with close social ties to unrelated females produce infants that survive longer.

New research indicates that for loggerhead sea turtles in the Northwest Atlantic, the number of returning nesting females in the population and favorable climate conditions in the year or two prior to the nesting year are strongly related to the number of nests produced by these animals in a given year.

Both common field crickets and bush - crickets are categorised by the males of the groups producing female - attracting calls by rubbing together specialised regions of their forewings.

The idea was to use the standard idea of sex determined by sex chromosomes — XX for female and XY for males — and to ask what would happen if culture affected the different numbers of each being produced.

Teosinte produces many long side branches, each topped by a male flower (tassel), and its female flowers (ears) are produced by secondary branches growing off the main branches.

The analysis produced a genetic match between a female whale observed and sampled off the coast of southern Chile in the Austral summer of 2006; it turned out the same whale sampled the waters of the Galapagos eight years earlier by NOAA scientists.

The authors call for further studies «to evaluate the many additional chemicals used in, and produced by, UOG processes to better quantify the concentrations of these and other contaminants in environmental samples and to assess the effects of exposure during other sensitive windows of development, including pregnancy and lactation, puberty, and the aging female.»

Because of this, the females may turn to parthenogenesis — reproduction without fertilisation from a male — as a last resort to produce offspring and avoid extinction, says a team led by Andrew Fields of Stony Brook University in New York.

Many orchids are masters of sexual deception, tricking male insects into pollinating their flowers by producing chemicals that precisely mimic female insects» sex pheromones.

The researchers studied a group of crickets in which males produce exceptionally high frequency calls to determine how they attract females by using sounds similar to a predator.

Normally, the honeybee is no exception to this rule: the female queen bee produces new offspring by laying eggs that have been fertilised by sperm from male drones.

Calls made by Zebra Finch females don't have acoustic features that would require rapid muscle control, but in other species females may produce calls that require the muscle control provided by superfast fibers even if they don't sing.

On the other hand, a female yellow fever mosquito mated by a male Asian tiger mosquito can not re-mate and produces no offspring.

During the study, all the lake's male fathead minnows began producing eggs and VTG, the female fish's egg development became delayed, newly hatched fish disappeared, and by the end, minnows were all but locally extinct.

Female worms then produce large numbers of larvae called microfilariae that move to the skin to be ingested again by biting black flies.

The scientists removed the first - laid clutches to encourage females to produce more eggs, but this meant that roughly half the young had to be reared by humans.

By mating with as many females as possible, males maximise the number of offspring they produce, and thus their chances of passing on their genes.

Here we use a stochastic, two - sex computational model implemented by computer simulation to show how male mating preference for younger females could lead to the accumulation of mutations deleterious to female fertility and thus produce a menopausal period.

«Produce birds» is science speak for saying that the funky chicken danced by males, which puff out their chest and make loud noises, is attracting females, and nature is taking its course.

The elevated incidence of glomerulonephritis in p21 - deficient mice, with increased severity among females, has been reported previously (35) and is attributable to an autoimmune process produced by abnormal proliferation of memory T - cell lymphocytes.

By giving a single small dose of certain chemicals (aromatic polycyclic hydrocarbons) to selected strains of female rats he found he could produce, within a few weeks, malignant mammary tumors — many of which were hormone dependent — in 100 percent of the treated animals.

Substances produced by rival male social insects destroy sperm, and females produce compounds to counteract sperm loss.

To prepare ovarian cells, ovarian tissues were isolated from 1 - day - old F2 female mice produced by interbreeding C57BL6 × CBA F1 mice.

Of the remaining 11 females, two did not produce any eggs, two produced unfertilized eggs with no sperm present on the perivitelline layer and seven produced eggs that had been reached by sperm from one male only.