Results 21 to 30 of about 1,979 (182)
Foot pressure distribution in White Rhinoceroses (Ceratotherium simum) during walking [PDF]
PeerJ, 2019 White rhinoceroses (Ceratotherium simum) are odd-toed ungulates that belong to the group Perissodactyla. Being second only to elephants in terms of large body mass amongst extant tetrapods, rhinoceroses make fascinating subjects for the study of how ...
Olga Panagiotopoulou +2 more
doaj +2 more sources
New material of Epiaceratherium and a new species of Mesaceratherium clear up the phylogeny of early Rhinocerotidae (Perissodactyla) [PDF]
Royal Society Open Science, 2020 Reduction of the anterior dentition (i.e. incisors and canines) is a major adaptative trait of the Rhinocerotidae among Perissodactyla. However, the corresponding evolutionary sequence was lacking a robust phylogenetic frame to support it thus far. Here,
Jérémy Tissier +2 more
doaj +1 more source
Historia del conocimiento de los perisodáctilos del Neógeno español
Estudios Geologicos, 2006 En el presente trabajo, se realiza una breve historia del estudio de los Perisodáctilos del Neógeno de España. Abarca las distintas vicisitudes de estos estudios desde las primeras citas de su presencia en suelo español durante el siglo XIX hasta ...
E. Cerdeño, M. T. Alberdi
doaj +1 more source
Theriogenology Wild, 2022 : This study aimed to contribute to the knowledge about the reproductive physiology of wild lowland tapirs (Tapirus terrestris) by describing the serum testosterone concentrations, testicular biometry, and testicular tone of individuals living in the ...
Andreza V. Brasil +3 more
doaj +1 more source
Estudios Geologicos, 1990 Se describen los restos más completos de Hippidion sp. reportados hasta el momento para el Pleistoceno de Uruguay. Corresponden a una forma robusta con extremidades anteriores relativamente cortas respecto del cráneo grande.
M. Ubilla, M. T. Alberdi
doaj +1 more source
Estudios Geologicos, 1986 El presente estudio comprende los hallazgos realizados en la localidad de Barro Negro (Humahuaca, Jujuy, Argentina). Incluye una descripción y comentarios de los rasgos sobresalientes del material, así como aspectos estratigráficos y cronológicos ...
M. T. Alberdi +3 more
doaj +1 more source
Natural killer cell receptor genes in the family Equidae: not only Ly49. [PDF]
PLoS ONE, 2013 Natural killer (NK) cells have important functions in immunity. NK recognition in mammals can be mediated through killer cell immunoglobulin-like receptors (KIR) and/or killer cell lectin-like Ly49 receptors.
Jan Futas, Petr Horin
doaj +1 more source
Arterial Patterns of the Face in Perissodactyla [PDF]
The Anatomical Record, 2017 ABSTRACTConsiderable consistency in the arterial pattern of the head has been observed in species of Artiodactyla, but few studies have examined the order Perissodactyla. Here, we describe arteries supplying the intermandibular, mental, masseteric, buccal, labial, and nasal regions in eight perissodactylans, including representing of all families ...
Karolina Kowalczyk, Hieronim Frąckowiak
openaire +2 more sources
Body Mass Records of Zoo-Managed Rhinoceros (Ceratotherium simum, Diceros bicornis, Rhinoceros unicornis) as Compared to Field Data of Free-Ranging Specimens. [PDF]
Zoo BiolFemale white rhinos in zoos systematically exceed the body mass range for free‐ranging specimens; this is not the case in black rhinos. ABSTRACT The body mass of zoo animals may differ from those in wild populations due to the different environmental and dietary conditions being offered under human‐managed care.
Garand E +7 more
europepmc +2 more sources
Bite-DNA Shows Substantial Browsing on Willows (<i>Salix</i> spp.) by North American Bison in Yellowstone National Park. [PDF]
Ecol EvolRiparian willows in Yellowstone National Park are shaped by ungulate browsing, but species‐specific contributions remain unclear. Using bite‐DNA metabarcoding of browsed willow twigs across six northern range sites, we found that American bison were the most frequent browsers, exceeding elk and often mule deer.
Jansson JL +3 more
europepmc +2 more sources