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More than a simple fixed action pattern: Yawning in drills
In the last decade, increasing attention has been devoted to exploring some aspects of yawning in non-human animals. With their chin red mark, bony...
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Contagious yawning in African painted dogs
Contagious yawning (CY), which is yawning elicited by sensing another yawning, has been observed only in social species and is considered linked to...
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Yawning informs behavioural state changing in wild spotted hyaenas
AbstractYawning is a complex behaviour linked to several physiological (e.g. drowsiness, arousal, thermoregulation) and social phenomena (e.g. yawn...
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First evidence of contagious yawning in a wild lemur
AbstractContrary to spontaneous yawning, yawn contagion occurs when yawning in a subject (responder) is elicited by the yawns of others (triggers)....
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Fish yawn: the state-change hypothesis in juvenile white-spotted char Salvelinus leucomaenis
Yawning is a ubiquitous stereotyped action in vertebrates. Yawning may induce behavioral state changes in animals through its arousal function, but...
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Taste association capabilities differ in high- and low-yawning rats versus outbred Sprague–Dawley rats after prolonged sugar consumption
Yawning is a stereotypical behavior pattern commonly associated with other behaviors such as grooming, sleepiness, and arousal. Several differences...
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Observation of yawn-like behavior in a dugong (Dugong dugon)
Yawning is an involuntary action that occurs in three phases: (1) slow mouth opening accompanied by inhalation, (2) maintaining the maximum mouth...
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Multiscale nest-site selection and breeding biology: infrared camera monitoring of the great crested grebe Podiceps cristatus in a plateau freshwater lake in southwestern China
Little is known about the breeding behavior and cause of egg loss in wild populations of the great crested grebe Podiceps cristatus . In 2021 and...
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Behavior of Mothers after Infant Loss in Bonnet Macaques (Macaca radiata)
Mother–offspring bonds in primates often last for life and shape the behavior of both mother and offspring. Therefore, the death of an infant may...
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Brain size and neuron numbers drive differences in yawn duration across mammals and birds
Recent studies indicate that yawning evolved as a brain cooling mechanism. Given that larger brains have greater thermolytic needs and brain...
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Seeing others yawn selectively enhances vigilance: an eye-tracking study of snake detection
While the origin of yawning appears to be physiologic, yawns may also hold a derived communicative function in social species. In particular, the...
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The Importance of Coastal Hauling Grounds in the Life of the Baikal Seal (Pusa sibirica Gmelin 1788, Pinnipedia): 4. Behavior of Seals on Coastal Hauling Grounds of Tonkii Ushkan Islet (Ushkan Islands, Lake Baikal), Based on Video Observations
Abstract —Remote monitoring of the behavior of the Baikal seal was carried out for the first time on one of the main islands of the archipelago of the...
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Appeasement function of displacement behaviours? Dogs’ behavioural displays exhibited towards threatening and neutral humans
Appeasement signals are behavioural patterns displaying an animal’s non-aggressive attitude and are hypothesized to reduce the aggressive behaviours...
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Driver’s Condition Detection System Using Multimodal Imaging and Machine Learning Algorithms
To this day, driver fatigue remains one of the most significant causes of road accidents. In this paper, a novel way of detecting and monitoring a...
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Distribution and in vivo Observations of the Boa Dragonfish Stomias boa (Stomiidae) in Deep-Sea Canyon Ecosystems of the Northwestern Mediterranean Sea
AbstractAn remotely operated vehicle survey conducted in three Canyon heads of the Ligurian Sea (northwestern Mediterranean Sea) in 2022 documented...
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The Evolution of Empathy and Its Expression in Bonobos
Bonobos (Pan paniscus) are a highly social great ape species that have evolved rich social and emotional capacities to enable them to navigate their...
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Puppies in the problem-solving paradigm: quick males and social females
We report an observational, double-blind study that examined puppies’ behaviors while engaged in solving an experimental food retrieval task (food...
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Genetic distance from wolves affects family dogs’ reactions towards howls
Domestication dramatically changes behaviour, including communication, as seen in the case of dogs ( Canis familiaris ) and wolves ( Canis lupus ). We...
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When are puppies receptive to emotion-induced human chemosignals? The cases of fear and happiness
We report an observational, double-blind, experimental study that examines the effects of human emotional odors on puppies between 3 and 6 months and...
