While social hierarchies do exist, rank plays a less prominent role than in other primate societies.

While infanticide has been seemingly preserved across primate orders, Hrdy found no evidence to suggest that the human species has a ' genetic imperative ' for infanticide.

While the homosexual bonding system in Bonobos represents the highest frequency of homosexuality known in any species, homosexuality has been reported for all great apes ( a group which includes humans ), as well as a number of other primate species.

While campaigning actively on behalf of primate conservation and preservation of rain forest, Galdikas continues her field research, among the lengthiest continuous studies of a mammal ever conducted.

While the brown bear's range has shrunk and it has faced local extinctions, it remains listed as a least concern species by the IUCN with a total population of approximately 200, 000.

While most species of North American red oak are unsuitable for construction of bokken, there are some Asian species of red oak that have a significantly tighter grain and will be able to withstand repeated impacts.

While past conservation efforts were aimed at protecting particular species and habitats, the Convention recognizes that ecosystems, species and genes must be used for the benefit of humans.

While the reliability of this mechanism has not yet been studied for all relevant crop species, recent results in tobacco plants are promising, showing a failed containment rate of transplastomic plants at 3 in 1, 000, 000.

While the earlier smaller species were insectivores, the later marmot-sized Cimolestes magnus probably took larger prey and were definitely a carnivore to some degree.

While other predictions show there could be as many as 28, 000 species in North America, including those currently undescribed, a realistic estimate of the little-studied Australian beetle fauna's true diversity could vary from 80, 000 to 100, 000.

While it began with the last common ancestor of all life, the topic usually only covers the evolutionary history of primates, in particular the genus Homo, and the emergence of Homo sapiens as a distinct species of hominids ( or " great apes ").

While some other, extinct Homo species might have been ancestors of Homo sapiens, many were likely our " cousins ", having speciated away from our ancestral line.

While northern fur seal males aggressively select and defend the specific females in their harems, males of southern species of fur seals tend to protect spatial territories, and females are free to choose or switch their mates according to their own preference or social hierarchy.

While some genetically modified plants are developed by the introduction of a gene originating from distant, sexually incompatible species into the host genome, cisgenic plants contain genes that have been isolated either directly from the host species or from sexually compatible species.

While some might argue that, by this logic, humans should also express hairy shoulders given that these body parts would putatively be exposed to similar conditions, the protection of the head, the seat of the brain that enabled humanity to become one of the most successful species on the planet ( and which also is very vulnerable at birth ), was arguably a more urgent issue ( axillary hair in the underarms and groin were also retained as signs of sexual maturity ).

While Dr. Hill and Dr. Mennill are themselves convinced of the bird's existence in Florida, they are quick to acknowledge that they have not yet conclusively proven the species ' existence.

While the plasma and lysosomal membranes are permeable for neutral and uncharged species of weak bases, the charged protonated species of weak bases do not permeate biomembranes and accumulate within lysosomes.

While the species that make up the Mentha genus are widely distributed and can be found in many environments, most Mentha grow best in wet environments and moist soils.

While microscopy is a central tool in the documentation of biological specimens, it is, in general, insufficient to justify the description of a new species based on microscopic investigations alone.

While thermodynamic equilibrium determines the theoretical extent of a given mass transfer operation, the actual rate of mass transfer will depend on additional factors including the flow patterns within the system and the diffusivities of the species in each phase.

While nitrate is much less toxic than ammonia, levels over 30 ppm of nitrate can inhibit growth, impair the immune system and cause stress in some aquatic species.

While often seen as rejecting Darwin's theory of branching evolution for a more linear Lamarckian " biogenic law " of progressive evolution, this is not accurate: Haeckel used the Lamarckian picture to describe the ontogenic and phylogenic history of the individual species, but agreed with Darwin about the branching nature of all species from one, or a few, original ancestors.

While Councilman Olson cited the anticipated increase in school costs in answer to a direct question from a taxpayer, the impact upon a school system does not have to be measured only in increased taxes to find alarm in uncontrolled growth.

While `` better late than never '' may have certain merits, the posthumous award of the Nobel Prize for Peace to the late Dag Hammarskjold strikes me as less than a satisfactory expression of appreciation.

While observing the operations of our Government in various parts of the world, I have felt that in many situations where our policies were good we have tended to ignore minor problems which spoiled our main effort.

While many companies have done fine work in developing sales personnel, much of it has been product rather than sales training.

While other conditions might be even more effective in bringing about a change from immobility to mobility in Kohnstamm reactivity, it is our hypothesis that all such conditions would have as a common factor the capacity to induce an attitude in the subject which enabled him to divorce himself temporarily from feelings of responsibility for his behavior.

While the interpretations that have been given are inferences only, they gain support from such comments as the following, which was made by one of the Kohnstamm-negative subjects who did not, on the first trial, perceive the tilt illusion.

While we had expected that compulsive children in the unstructured school setting would have difficulty when compared to those in the structured, we were surprised to find that the achievement of the high compulsives within the schools where the whole-word method is used in beginning reading compares favorably with that of the low compulsives.

While the U. S. Department of Labor has a program of projecting industry and occupational employment trends and publishing current outlook statements, there is little tangible evidence that these projections have been used extensively in local curriculum planning.

While the method of interviewing a small number of companies was appealing because of the opportunity it might have furnished to probe fully the reasons and circumstances of a company's practices and opinions, it also involved the risk of paying undue attention to the unique and peculiar problems of just a few individual companies.

While patent suits are still among the most complex and expensive forms of litigation, these rules have saved litigants uncounted sums of money.

While availability of mortgage money has been a factor in encouraging apartment construction, the generally high level of prosperity in the past few years plus rising consumer income are among the factors that have encouraged builders to concentrate in the apartment-building field.

The Japanese want to increase exports to the U.S. While they have been curbing shipments, they have watched Hong Kong step in and capture an expanding share of the big U.S. market.

While it must be said that these same Protestants have built some new churches during this period, and that religious population shifts have emptied churches, a principal reason for this phenomenon of redundancy is that fewer Protestants are going to church.

While ideas about altruism from one field can have an impact on the other fields, the different methods and focuses of these fields always lead to different perspectives on altruism.

While humans and other organisms generally place less value on future costs / benefits as compared to those in the present, some have shorter time horizons than others and these people tend to be less cooperative.

While cyanobacteria have been traditionally considered algae, recent works usually exclude them due to large differences such as the lack of membrane-bound organelles, the presence of a single circular chromosome, the presence of peptidoglycan in the cell walls, and ribosomes different in size and content from those of the Eukaryotes .< ref >

While most alphabets have letters composed of lines ( linear writing ), there are also exceptions such as the alphabets used in Braille, fingerspelling, and Morse code.

While the group only recorded one album together as the Analog Brothers, a few bootlegs of its live concert performances, including freestyles with original lyrics, have occasionally surfaced online.

While Miss Marple is described as ' an old lady ' in many of the stories, her age is mentioned in " At Bertram's Hotel ", where it is said she visited the hotel when she was 14 and almost 60 years have passed since then.

While much of the construction in these sites conforms to common Pueblo architectural forms, including Kivas, towers, and pit-houses, the space constrictions of these alcoves necessitated what seems to have been a far denser concentration of their populations.

While refuting reincarnation, the Saadia Gaon further states that Jews who hold to reincarnation have adopted non-Jewish beliefs.

While Renaissance artists sought nature to find their style, the Mannerists looked first for a style and found a manner. In Mannerist paintings, compositions can have no focal point, space can be ambiguous, figures can be characterized by an athletic bending and twisting with distortions, exaggerations, an elastic elongation of the limbs, bizarre posturing on one hand, graceful posturing on the other hand, and a rendering of the heads as uniformly small and oval.