Gibbons (Nomascus leucogenys), siamangs (Symphalangus syndactylus), and chimpanzees (Pan troglodytes) account for proportional probabilities in a two-choice task [0.03%]
白掌长臂猿（Nomascus leucogenys）、西猩猩（Symphalangus syndactylus）和黑猩猩（Pan troglodytes）在二择任务中表现出概率匹配行为
Jessica Crimston,Sue Tonga,Jonathan Redshaw et al.
Jessica Crimston et al.
Probabilistic reasoning-the ability to predict outcomes based on the likelihood of different possibilities-is a key component of numerical cognition and is critical for navigating uncertain environments. However, it is unclear whether this ...
Learning to discriminate between shapes generalizes to novel stimuli in North American river otters (Lontra canadensis): A preliminary study on perceptual categorization [0.03%]
北美水獭（Lontra canadensis）区分形状的辨别学习能泛化到新颖刺激：关于感知分类的一项初步研究
Jessica J Wegman,Catina Wright,Kenneth Tyler Wilcox et al.
Jessica J Wegman et al.
Perceptual categorization is grouping objects based on similar physical features. Otters may use categorization to classify predators, prey, and conspecifics. This study was the first to examine whether North American river otters (Lontra c...
Morgan's ghosts: On canon, cognition, and what we still do not know [0.03%]
莫尔根的幽灵：关于经典、认知以及我们尚未了解的事物
Alice Auersperg
Alice Auersperg
Comparative psychology has its share of historical ironies. A particularly delightful one comes from Lloyd Morgan himself. In Animal Behavior, which was published after An Introduction to Comparative Psychology (which contains Morgan's Cano...
Effect of visual range on producer responses: Insights from humans (Homo sapiens) and an agent-based model [0.03%]
视野对生产者响应的影响：来自人类(Homo sapiens)和基于智能体模型的启示
Laurent Avila-Chauvet,Diana Mejía Cruz,Luis Alfaro Hernández et al.
Laurent Avila-Chauvet et al.
The Producer-Scrounger game proposes that individuals in social foraging situations tend to choose one of two strategies: (a) actively invest effort in searching for resources (producing) or (b) exploit resources discovered by others (scrou...
Cognitive tasks show age-related decline over a 10-year period in a natural aging monkey model, cotton-top tamarins (Saguinus oedipus) [0.03%]
认知任务表现随自然老化而衰退：棉顶狨猴模型中十年间的表现下降现象
Julie J Neiworth,Scott P Gillespie,Ye In Christopher Kwon et al.
Julie J Neiworth et al.
Cotton-top tamarins (n = 14, aged 7-24 years) were tested over a 10-year period on tasks conventionally differentiating aging from dementia in humans. Three tasks were developed on iPads to collect response accuracies in tests of attention ...
Horses (Equus caballus) successfully solve an object choice task using a human pointing gesture and a physical marker: A partial replication of Proops et al. (2010) [0.03%]
用肢体语言和物理标记训练马（Equus caballus）解决对象选择问题：Proops等（2010年）研究的部分重复实验
Ivana Dumičić,Ljerka Ostojić
Ivana Dumičić
Like other domesticated species, most notably dogs, horses have been reported to follow human gestures and successfully use them to gain rewards in an object choice task. Empirical support for the hypothesis that a domain-general mechanism ...
Group-level matching behavior in phototaxis of acoel flatworm Praesagittifera naikaiensis [0.03%]
日本奈颗粒新前剑尾动物游离神经肌肉束的光感行为中的群组匹配行为研究
Hiroshi Matsui,Yumi Hata
Hiroshi Matsui
The matching law, which posits that animals allocate their responses in proportion to the rate of reinforcement, has been supported across diverse animal taxa. Although originally formulated in the context of operant choice, matching also a...
Psychological self-medication in mammals: A dialogue between natural observations and laboratory research [0.03%]
哺乳动物的心理自我治疗：自然观察与实验室研究之间的对话
Carmen Torres,Mauricio R Papini,Michael A Huffman
Carmen Torres
The use of plants with medicinal properties by nonhuman animals has been extensively documented. However, little emphasis has been placed on evidence suggesting that animals also appear to use/consume substances with psychoactive properties...
A test of inference by exclusion in grey parrots (Psittacus erithacus): Replication of a parrot-child comparative study using additional avian subjects [0.03%]
以灰鹦鹉（Psittacus erithacus）为对象的排除性推理测试——使用更多鸟类重复进行的一项与儿童比较的研究
Irene M Pepperberg,Leigh Ann Hartsfield
Irene M Pepperberg
Grey parrots have been shown to reason via inference by exclusion in various experiments, but so far only one bird has been shown to succeed on a four-cup task originally tested on young children, a purportedly stronger test of inference th...
Dogs' (Canis familiaris) behavior on a social learning puzzle task is impacted by sex and demonstration but not oxytocin [0.03%]
犬（家犬）的行为受性别和演示影响，但不受催产素的影响（英文：Dogs' (Canis familiaris) behavior on a social learning puzzle task is impacted by sex and demonstration but not oxytocin）
Erin Colbert-White,Matthew Q Maus,Alexa Tullis
Erin Colbert-White
Oxytocin's (OT's) influence on social behavior is highly complex and dependent upon context. Here, we addressed a gap in the literature on how OT impacts the learning process in a purely behavioral study. We conducted a 2 (OT, placebo) × 2...