Results 21 to 30 of about 7,412 (197)

How Flexible is Tool Use in Eurasian Jays (Garrulus glandarius)? [PDF]

open access: yesAnimal Behavior and Cognition, 2020
Eurasian jays (Garrulus glandarius) do not habitually use tools, yet they can be trained to solve object-dropping tasks, i.e., to insert a tool into an apparatus to release a food reward.
Piero Amodio   +4 more
doaj   +1 more source

Animal moral psychologies [PDF]

open access: yes, 2022
Observations of animals engaging in apparently moral behavior have led academics and the public alike to ask whether morality is shared between humans and other animals.
Andrews, Kristin, Monsó, Susana
core   +1 more source

The social life of corvids [PDF]

open access: yesCurrent Biology, 2007
In large social groups with a linear dominance hierarchy, such as many corvid societies, the ability to make inferences about the relative status of individuals within this hierarchy is an important skill, often called transitive inference. For example, if Bob is more dominant than Joe, and Joe is more dominant than Simon, and Bob and Simon have a ...
Clayton, Nicola S., Emery, Nathan J.
openaire   +2 more sources

The evolution and development of visual perspective taking [PDF]

open access: yes, 2019
I outline three conceptions of seeing that a creature might possess: ‘the headlamp conception,’ which involves an understanding of the causal connections between gazing at an object, certain mental states, and behavior; ‘the stage lights conception ...
Andrews K.   +13 more
core   +1 more source

Blood parasite infections in a wild population of ravens (Corvus corax) in Bulgaria

open access: yesMalaria Journal, 2018
Background Blood parasites have been studied intensely in many families of avian hosts, but corvids, a particularly cosmopolitan family, remain underexplored.
Peter Shurulinkov   +3 more
doaj   +1 more source

LIBERTY FOR CORVIDS [PDF]

open access: yesPublic Affairs Quarterly, 2017
Abstract We argue that at least some corvids morally ought to be granted a right to bodily liberty in the US legal system and relevantly similar systems. This right would grant immunity to frivolous captivity and extermination. Implementing this right will require new legislation or the expansion of existing legislation including the ...
Mark Wells, Scott Simmons, Diana Klim
openaire   +1 more source

American Crows as Carriers of Extra Intestinal Pathogenic E. coli and Avian Pathogenic-Like E. coli and Their Potential Impact on a Constructed Wetland

open access: yesMicroorganisms, 2020
The study examines whether crows are carriers of extraintestinal pathogenic E. coli (ExPEC) and avian pathogenic E. coli (APEC)-like strains, and if wetland roost areas contribute to their spread. A total of 10 crow feces (n = 71) and 15 water E.
Keya Sen   +8 more
doaj   +1 more source

Exploring the nature and strength of the semiotic relation: A case study about liminal species in Tartu

open access: yesSign Systems Studies, 2023
The case study described in this paper is part of an emerging cultural context in both its scientific as well as societal aspects, where animals are seen more and more as social and ethical subjects and their presence in the vicinity of humans is seen ...
Pauline Delahaye
doaj   +1 more source

Cognition As a Natural Kind [PDF]

open access: yesOrganon F
In corvids and apes, cognition evolved convergently instead of being inherited by a shared ancestor. In biology, natural kinds are classified according to common ancestry.
Selen Fettahoğlu
doaj   +1 more source

Abstract knowledge in the broken-string problem : evidence from nonhuman primates and pre-schoolers [PDF]

open access: yes, 2014
There was funding from the Royal Commission for the Exhibition of 1851.There is still large controversy about whether abstract knowledge of physical problems is uniquely human.
Albiach-Serrano, Anna   +5 more
core   +4 more sources

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