By comparing multiple specimens, even cutting up fossil bones to get a look at the microstructure of bone or drilling geochemical samples, researchers can get a better idea of how dinosaurs grew up, how they varied as individuals and details about dinosaur biology.
Most species (133 out of 157) were represented by multiple specimens, with an average of 12 specimens per species; six species were represented by more than 50 specimens.
Further improvement can be achieved by obtaining multiple specimens and/or the additional use of intraoperative imaging [ 7].
By collecting multiple specimens from the same patient and from community controls without pneumonia, PERCH will provide a comprehensive selection of pathogen data that can be used to validate (or refute) the results from other studies in which only 1 or 2 specimens are collected or in which only case patients are studied.
On average, 3.2 individuals (range 1 19) were analyzed per species, with 389 taxa represented by multiple specimens.
Despite a seemingly broad sample of comparative skull material, relatively few crania referred to taxa within Allosauroidea are extensively described or represented by multiple specimens.
Mean intraspecific distance was 0.24% based on the 389 species represented by multiple specimens (weighted equally regardless of the number of individuals).
However, reliable amplification of phytoseiid mitochondrial DNA by Standard PCR was possible only when DNA was prepared by a Puregene method from multiple specimens (>20 females).
The RVP identified a respiratory virus from multiple specimens in 25 patients.
The problem posed by the ratio is that the multiple specimens studied, died in the same place, but probably not in a sudden mass-death and so do not represent a single herd or contemporary population.
