Results 11 to 20 of about 856 (158)

Comparing cranial biomechanics between Barbourofelis fricki and Smilodon fatalis: Is there a universal killing-bite among saber-toothed predators? [PDF]

open access: yesAnat Rec (Hoboken)
Saber‐tooths, extinct apex predators with long and blade‐like upper canines, have appeared iteratively at least five times in the evolutionary history of vertebrates.
Figueirido B   +2 more
europepmc   +5 more sources

A new species of whipworm from a south american hystricomorph rodent [PDF]

open access: yesMemorias do Instituto Oswaldo Cruz, 1990
A new species of whipworm, Trichuris robusti, is described from the cecum and large intestine of rodent, Ctnomys robusti, collected in northern Chile. The nematode shows close affinityto T. bradleyi and T. chilensis, both having been described from Chile
B. B. Babero, R. B. Murua
doaj   +3 more sources

Placentation in the paca (Agouti paca L) [PDF]

open access: yesReproductive Biology and Endocrinology, 2005
Background The paca is a South American rodent with potential as a commercial food animal. We examined paca placenta as part of a wider effort to understand the reproductive biology of this species.
de Lima Marcelo   +5 more
doaj   +5 more sources

Digital dissection of the masticatory muscles of the naked mole-rat, Heterocephalus glaber (Mammalia, Rodentia). [PDF]

open access: yesPeerJ, 2014
The naked mole-rat, Heterocephalus glaber, of the family Bathyergidae is a subterranean rodent that feeds on underground roots and tubers and digs extensive tunnel systems with its incisors.
Cox PG, Faulkes CG.
europepmc   +6 more sources

Noninvasive Ultrasound Monitoring of Embryonic and Fetal Development in Chinchilla lanigera to Predict Gestational Age: Preliminary Evaluation of This Species as a Novel Animal Model of Human Pregnancy [PDF]

open access: yesContrast Media &Molecular Imaging, Volume 2019, Issue 1, 2019., 2019
Ultrasound is a noninvasive routine method that allows real-time monitoring of fetal development in utero to determine gestational age and to detect congenital anomalies and multiple pregnancies.
Brunetti, A.   +8 more
core   +2 more sources

The morphology of female genitalia in Galea spixii (Caviidae, Caviinae) [PDF]

open access: yesBioscience Journal, 2014
The yellow-toothed cavy (Galea spixii) is a hystricomorph rodent of the Caviidae family. In Brazil, G. spixii are bred in captivity to provide an alternative protein source and to preserve the specie.
Amilton Cesar dos Santos   +6 more
doaj   +4 more sources

Two rodent suborders have evolved missing amino acids in the lipid-binding region of apolipoprotein E. [PDF]

open access: yesLipids
Abstract The order Rodentia comprises nearly 45% of all extant taxa, currently organized into 31 living families, some 450 genera, and roughly 2010 species (Kelt & Patton, 2020). Considering that rodents began evolving at least 66 million years ago, it is not surprising that they have diversified into five distinct suborders.
Puppione DL.
europepmc   +2 more sources

Sand accumulation in the digestive tract of rabbits (Oryctolagus cuniculus) and guinea pigs (Cavia porcellus): The role of the appendix. [PDF]

open access: yesJ Morphol, 2022
Serial dorsoventral abdominal CT images of rabbits fed different amounts of sand as part of a serial feeding experiment. Given images are from different individuals in order to create an impression of the reproducibility of the sand's position in the abdomen.
Winter N   +8 more
europepmc   +2 more sources

Reproductive Technologies Used in Female Neo-Tropical Hystricomorphic Rodents [PDF]

open access: yesAnimals, 2021
This is the second of two literature reviews that focuses on the female reproductive anatomy and reproductive technologies used in selected neo-tropical hystricomorphic rodents. The rodents chosen included the agouti (Dasyprocta leporina), the capybara (Hydrochoerus hydrochaeris), and the paca (Cuniculus paca).
Kavita Ranjeeta Lall   +2 more
openaire   +5 more sources

Updated and annotated checklist of recent mammals from Brazil [PDF]

open access: yesAnais da Academia Brasileira de Ciências, 2020
An updated and annotated checklist of mammals occurring in Brazil is presented. A total of 751 native species, distributed in 249 genera, 51 families and 11 orders were recorded to the country.
FERNANDO MARQUES QUINTELA   +2 more
doaj   +1 more source

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