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

