Results 1 to 10 of about 164 (111)

Social learning in a non-social reptile ( Geochelone carbonaria ) [PDF]

open access: yesBiology Letters, 2010
The ability to learn from the actions of another is adaptive, as it is a shortcut for acquiring new information. However, the evolutionary origins of this trait are still unclear. There is evidence that group-living mammals, birds, fishes and insects can learn through observation, but this has never been investigated in reptiles ...
Anna Wilkinson, Ludwig Huber
exaly   +6 more sources

No evidence of contagious yawning in the red-footed tortoise Geochelone carbonaria [PDF]

open access: yesEnvironmental Epigenetics, 2011
Three hypotheses have attempted to explain the phenomenon of contagious yawning. It has been hypothesized that it is a fixed action pattern for which the releasing stimulus is the observation of another yawn, that it is the result of non-conscious ...
Anna Wilkinson   +2 more
exaly   +7 more sources

Morphology and topographic anatomy of the spinal cord of the red-footed tortoise (Geochelone carbonaria Spix, 1824) [PDF]

open access: yesPesquisa Veterinaria Brasileira, 2011
The aim of this study was to describe the topography of the spinal cord of the red-footed tortoise to establish a morphological basis for applied research in anesthesiology and morphology.
Rafael Cardoso Carvalho   +1 more
exaly   +5 more sources

Low relationship quality predicts scratch contagion during tense situations in orangutans (Pongo pygmaeus). [PDF]

open access: yesAm J Primatol, 2020
Scratch contagion is stronger between weakly bonded individuals (nonkin/friends) during tense situations. Abstract Primates show various forms of behavioral contagion that are stronger between kin and friends. As a result, behavioral contagion is thought to promote group coordination, social cohesion, and possibly state matching.
Laméris DW   +4 more
europepmc   +2 more sources

A note on the reproduction of Geochelone carbonaria and G. denticulata (Testudines, Testudinidae) [PDF]

open access: yesRevista Brasileira De Biologia, 1999
On the occasion of having collected three gravid Geochelone carbonaria in the Bolivian Chaco, data are given on oviducal eggs, as well as on five shells of eggs of the same species in the Museum collection. A review of the literature on the reproduction of G. carbonaria and of its sibling G.
P E Vanzolini
exaly   +5 more sources

Spatial learning and memory in the tortoise (Geochelone carbonaria). [PDF]

open access: yesJournal of Comparative Psychology (Washington, D C: 1983), 2007
A single tortoise (Geochelone carbonaria) was trained in an eight-arm radial maze, with the apparatus and general procedures modeled on those used to demonstrate spatial learning in rats. The tortoise learned to perform reliably above chance, preferentially choosing baited arms, rather than returning to arms previously visited on a trial. Test sessions
Anna Wilkinson, Geoffrey Hall
exaly   +5 more sources

Involvement of available SH groups in the heterogeneity of hemoglobin from the tortoise Geochelone carbonaria [PDF]

open access: yesIUBMB Life, 1998
AbstractGeochelone carbonaria hemoglobin (Hb) was analyzed by polyacrylamide gel electrophoresis (PAGE) and purified by ion exchange chromatography on CM‐cellulose. Seven fractions were obtained using fresh Hb preparations. CM‐cellulose chromatography of Hb reacted with iodoacetamide, showed one minor (HbI) and one major band (HbII).
M A, Torsoni, A, Souza-Torsoni, S H, Ogo
exaly   +3 more sources

Hepatic cirrhosis in a red-foot tortoise (Geochelone carbonaria): a case report Cirrose hepática em jabuti (Geochelone carbonaria): relato de caso

open access: yesArquivo Brasileiro de Medicina Veterinária e Zootecnia, 2004
Um jabuti (Geochelone carbonaria) de 30 anos de idade foi encaminhado ao setor de patologia para exame post mortem. À necropsia, foi observada ascite acentuada. O fígado apresentava-se diminuído de volume e com vários nódulos firmes entre 0.3 e 1.0 cm de
R.M.C. Guedes, G.E. Lavalle
doaj   +2 more sources

Tránsito digestivo en geochelone carbonaria (morrocoy) con diferentes dietas experimentales

open access: yesRevista Colombiana de Ciencia Animal Recia, 2010
Este estudio evalúa el tiempo de tránsito digestivo con diferentes dietas en Geochelone carbonaria (morrocoy) bajo condiciones de cautividad. Se utilizó un total de nueve ejemplares maduros de esta especie, divididos en tres grupos al azar.
LICETH MADERA-VERGARA   +2 more
doaj   +2 more sources

Identification and Characterization of Escherichia coli, Salmonella Spp., Clostridium perfringens, and C. difficile Isolates from Reptiles in Brazil. [PDF]

open access: yesBiomed Res Int, 2019
Considering the increasing popularity of reptiles as pets and their possible role as reservoirs of pathogenic microorganisms, the aim of this study was to isolate Escherichia coli, Salmonella spp., Clostridium perfringens, and C. difficile strains from reptiles in Brazil and to characterize the isolated strains.
Ramos CP   +9 more
europepmc   +2 more sources

Home - About - Disclaimer - Privacy