Results 61 to 70 of about 103 (87)

Captive bottlenose dolphins (Tursiops truncatus) spontaneously using water flow to manipulate objects. [PDF]

PLoS One, 2014
Yamamoto C, Furuta K, Taki M, Morisaka T.   +3 more
europepmc   +1 more source

Eurasian jays do not copy the choices of conspecifics, but they do show evidence of stimulus enhancement. [PDF]

PeerJ, 2016
Miller R, Logan CJ, Lister K, Clayton NS.   +3 more
europepmc   +1 more source

Tool use by aquatic animals. [PDF]

Philos Trans R Soc Lond B Biol Sci, 2013
Mann J, Patterson EM.
europepmc   +1 more source

Cholecystokinin in white sea bream: molecular cloning, regional expression, and immunohistochemical localization in the gut after feeding and fasting. [PDF]

PLoS One, 2012
Micale V, Campo S, D'Ascola A, Guerrera MC, Levanti MB, Germanà A, Muglia U.   +6 more
europepmc   +1 more source

Morphological and molecular identification of metacestodes infecting teleost fishes of Moreton Bay, Australia. [PDF]

Syst Parasitol
Cutmore SC, Bennett MB, Cribb TH.
europepmc   +1 more source

Proposal of Troglocephalinae n. subfam. (Monogenea: Monocotylidae) to accommodate existing and two new monocotylids from the gills of rhinopristiform shovelnose rays. [PDF]

Syst Parasitol
Vaughan DB, Hansen H, Chisholm LA.
europepmc   +1 more source

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First identification of interspecies hybridization in the freshwater stingrays Potamotrygon motoro and P. falkneri (Myliobatiformes, Potamotrygonidae)

Conservation Genetics, 2014
The stingrays Potamotrygon motoro and P. falkneri occurred in sympatry in the Paraguay, Lower and Middle Parana River, and belong to distinct ecomorphological groups. The construction of a hydroelectric dam in Itaipu in 1982 facilitated the invasion of Upper Parana River by both species with unpredictable ecological consequences. The aim of the present
Paulino Martinez Portela, Vanessa Paes Cruz, Fernando Mendonça   +2 more
exaly   +3 more sources

Validation of manual semen collection methods and sperm evaluation in living freshwater stingrays (Potamotrygon falkneri) kept in ex situ conditions

Environmental Biology of Fishes, 2021
The Potamotrygon from the Potamotrygonidae family is a freshwater stingray that is native to and distributed throughout South American watersheds. The degradation suffered by the environment in recent years, particularly in aquatic habitats, directly affects native fish species.
Fabiana Lúcia André Padilha, Helen Colbachini, Sofia Dressel Ramos, Laura Chrispim Reisfeld, Paloma Canedo Henrique, Roberta Ferreira Leite, João Diego de Agostini Losano, Marcilio Nichi, Raphaela Gabrielle Brito Sousa, Rafael Caprioli Gutierrez, Pedro Nacib Jorge-Neto, Cristiane Schilbach Pizzutto   +11 more
openaire   +1 more source

Social learning in Cartilaginous fish (stingrays Potamotrygon falkneri)

Animal Cognition, 2013
Social learning is considered one of the hallmarks of cognition. Observers learn from demonstrators that a particular behavior pattern leads to a specific consequence or outcome, which may be either positive or negative. In the last few years, social learning has been studied in a variety of taxa including birds and bony fish.
Kerstin E, Thonhauser, Tamar, Gutnick, Ruth A, Byrne, Karl, Kral, Gordon M, Burghardt, Michael J, Kuba   +5 more
openaire   +3 more sources

Comparative study on extracts from the tissue covering the stingers of freshwater (Potamotrygon falkneri) and marine (Dasyatis guttata) stingrays

Toxicon, 2007
Stingrays are elasmobranchs found along the seacoast and in some rivers of Brazil. Pain is the most conspicuous symptom observed in patients wounded by the bilaterally retroserrate stingers located in the tail, which are covered by glandular and integument tissues.
Barbaro, Katia C., Lira, Marcela S., Malta, Marilia B., Soares, Sabrina L., Neto, Dorningos Garrone, Cardoso, Joao L. C., Santoro, Marcelo L., Junior, Vidal Haddad   +7 more
openaire   +3 more sources