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

