Article
Behavioral Sciences
Luigi Baciadonna, Georgia M. Jerwood, Benjamin G. Farrar, Nicola S. Clayton, Nathan J. Emery
Summary: In this study, the researchers aimed to investigate mirror self-recognition (MSR) in ravens using three different mirror tests. The results showed that the ravens' behavior did not support the presence of MSR, raising further questions about the validity of relying on mirror tests to establish self-recognition. The study also called for the development of alternative methods to explore self-recognition in nonhuman animals.
JOURNAL OF COMPARATIVE PSYCHOLOGY
(2022)
Editorial Material
Psychology, Biological
Eva Kakrada, Michael Colombo
Summary: The extent to which different species display self-recognition is a controversial topic in comparative cognition. This review suggests that the reason why an animal fails the mark test is because the study has failed to adequately account for one or more of three crucial elements: mirror understanding, self-exploration, and mark saliency. Alternative methods of validating mirror self-recognition are also discussed.
LEARNING AND MOTIVATION
(2022)
Article
Agriculture, Dairy & Animal Science
Pathissery John Sarlin, Sancia Morris, Savio Morris, Sandie Morris, Polycarp Joseph, Darshitha Sherly
Summary: Researchers have observed wild house crows exhibiting impressive tool use skills by delicately manipulating burning oil lamps to consume the cotton wick. This is the first report of such behavior in house crows, providing insights into their adaptability and problem-solving abilities. Further research on the fire-handling capability of nonhuman species could enhance our understanding of early human interactions with fire.
AVIAN BIOLOGY RESEARCH
(2023)
Article
Multidisciplinary Sciences
Masanori Kohda, Redouan Bshary, Naoki Kubo, Satoshi Awata, Will Sowersby, Kento Kawasaka, Taiga Kobayashi, Shumpei Sogawa
Summary: Research has found that the mirror self-recognition (MSR) ability in cleaner fish is associated with a mental image of the self-face, similar to humans. The study provides evidence that cleaner fish with MSR capacity can recognize their own facial characteristics in photographs. Combining mirror test experiments with photographs has the potential to enhance our understanding of the evolution of cognitive processes and private self-awareness in nonhuman animals.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Zoology
Tony Calmette, Helene Meunier
Summary: Despite decades of research, few species have shown convincing evidence of mirror self-recognition. Previous studies overlooked the ecological relevance of mirrors, but this new study found that capuchin monkeys lack the ability to recognize themselves in mirrors. The modified mark test used in this study could be valuable for future research.
Article
Behavioral Sciences
Trent Robinson
Summary: Mirror self-recognition has primarily been studied in vertebrate species using the mirror mark test. However, recent interest suggests that all animals may need some form of self-representation. This study examines mirror self-recognition in ghost crabs using a visual mirror mark test, revealing a rudimentary form of self-awareness in this species. Further research is needed to understand more sophisticated forms of self-awareness.
Article
Zoology
Christian R. Blum, W. Tecumseh Fitch, Thomas Bugnyar
Summary: Social dynamics significantly influence individual anti-predator behavior. Higher-ranking individuals scold more and earlier in group trials. However, scolding duration is no longer affected by rank in separation trials.
FRONTIERS IN ZOOLOGY
(2022)
Article
Physiology
Piero Amodio, Graziano Fiorito
Summary: Mirror self-recognition (MSR) is a potential indicator of self-awareness. In this study, the behavioral responses of common octopuses towards their own reflected images were investigated, and a marking procedure was explored for conducting the Mark test. The results showed that octopuses exhibited stronger exploratory responses towards the mirror compared to a non-reflective panel, but showed agonistic responses only in the presence of the mirror. In addition, mark-directed behaviors were observed even in the absence of the mirror and in sham-marked individuals, suggesting that proprioceptive stimuli drove these responses. Despite the limitations of the marking procedure, the baseline data collected in this pilot study may facilitate further research on MSR in octopuses and other cephalopods.
FRONTIERS IN PHYSIOLOGY
(2022)
Article
Psychology, Multidisciplinary
Yanyu Lei
Summary: This theoretical paper examines literature from the past 50 years regarding self-recognition in over 30 species. Animals are classified based on the quantity and quality of research supporting evidence of their self-recognition abilities. It was found that only social animals have consistently demonstrated self-recognition, while solitary species studied so far do not seem to possess this trait. This finding aligns with the social intelligence hypothesis.
FRONTIERS IN PSYCHOLOGY
(2023)
Article
Psychology, Multidisciplinary
Ivan A. Khvatov, Anna A. Smirnova, Maria V. Samuleeva, Evgeniy V. Ershov, Svetlana D. Buinitskaya, Alexander N. Kharitonov
Summary: Research suggests that hooded crows exhibit a preference for choosing easier passage options in experiments, indicating a potential awareness of their own body size.
FRONTIERS IN PSYCHOLOGY
(2021)
Review
Behavioral Sciences
Lindsay E. Murray, James R. Anderson, Gordon G. Gallup
Summary: This study aims to evaluate mirror self-recognition in gorillas by setting out a method to assess the research. The findings suggest that methodological rigor does not guarantee stronger evidence of self-recognition in gorillas, indicating that the self-recognition abilities of gorillas are still controversial.
Article
Ecology
Isma Benmazouz, Jukka Jokimaki, Lajos Juhasz, Marja-Liisa Kaisanlahti-Jokimaki, Petra Paladi, Gabor Kardos, Szabolcs Lengyel, Laszlo Kover
Summary: Urbanization has led to increased interest in urban biodiversity and wildlife responses to urban environments. This study examines morphological adaptations of Hooded Crows to urban environments by comparing body size and condition between urban and rural populations in Hungary. The study finds that urbanized crows show some morphological changes but no large-scale consistent differences between urban and rural areas, with significant variations observed within one city.
FRONTIERS IN ECOLOGY AND EVOLUTION
(2023)
Article
Multidisciplinary Sciences
Luigi Baciadonna, Francesca M. Cornero, Nicola S. Clayton, Nathan J. Emery
Summary: Mirror exposure can lead to various behavioral responses, some of which are considered as evidence of mirror self-recognition (MSR). However, the evidence of MSR is only found in a few species, and there is ongoing debate about its existence in corvids. This study on Eurasian jays found that conclusions about their understanding of reflective surfaces and perception of the reflection as themselves or as a conspecific are premature. Neophobia and methodological constraints may have hindered their response to mirrors. Motivational factors, methodological constraints, and species differences should be considered when interpreting behavioral responses to mirrors.
Article
Psychology, Multidisciplinary
Pooja Parishar, Alok Nath Mohapatra, Soumya Iyengar
Summary: Evidence suggests that some mammals and birds, besides humans, can demonstrate visual self-recognition, though there are high levels of individual differences. Furthermore, zebra finches and Indian house crows showed different behavioral responses in the mark test.
FRONTIERS IN PSYCHOLOGY
(2021)
Article
Neurosciences
Ylva Kersten, Bettina Friedrich-Mueller, Andreas Nieder
Summary: This study systematically explores the neuroanatomy of the crow's song system, revealing important song-related nuclei and mapping their distribution throughout the brain. Fiber-stained sections show potential connection patterns between the crow's song nuclei similar to other songbirds.
JOURNAL OF COMPARATIVE NEUROLOGY
(2021)
Article
Behavioral Sciences
S. K. Tahajjul Taufique, Vinod Kumar
BEHAVIOURAL BRAIN RESEARCH
(2016)
Article
Behavioral Sciences
S. K. Tahajjul Taufique, Abhilash Prabhat, Vinod Kumar
NEUROBIOLOGY OF LEARNING AND MEMORY
(2018)
Article
Neurosciences
S. K. Tahajjul Taufique, Abhilash Prabhat, Vinod Kumar
EUROPEAN JOURNAL OF NEUROSCIENCE
(2018)
Article
Cell Biology
Amit Kumar Trivedi, Sayantan Sur, Aakansha Sharma, S. K. Tahajjul Taufique, Neelu Jain Gupta, Vinod Kumar
MOLECULAR AND CELLULAR ENDOCRINOLOGY
(2019)
Article
Biology
Abhilash Prabhat, Neelu Anand Jha, S. K. Tahajjul Taufique, Vinod Kumar
CHRONOBIOLOGY INTERNATIONAL
(2019)
Editorial Material
Neurosciences
S. K. Tahajjul Taufique, Han Wang
NEUROSCIENCE BULLETIN
(2021)
Article
Biology
Neelu Anand Jha, S. K. Tahajjul Taufique, Vinod Kumar
Summary: The study found that the reproductive performance of zebra finches was negatively affected in a no-night environment, with decreased reproductive success, longer fledging durations, and increased offspring mortality. These effects were more pronounced in the subsequent generations, resulting in more failed nesting and breeding attempts, delayed reproduction, and higher offspring mortality.
JOURNAL OF EXPERIMENTAL BIOLOGY
(2021)
Article
Neurosciences
David E. Ehichioya, S. K. Tahajjul Taufique, Chikodi N. Anigbogu, Smith Jaja
Summary: Poor maternal sleep quality during different phases of pregnancy can impact fetal development. This study found that maternal sleep deprivation in early and late pregnancy can have adverse effects on the hypothalamic-pituitary-adrenal (HPA) axis in female offspring.
Article
Psychology, Biological
Twinkle Batra, Amaan Buniyaadi, Vinod Kumar
Summary: This study investigates whether nocturnal eating causes metabolic impairment and sleep disruption in diurnal animals exposed to illuminated nights. The results suggest that under dim light exposure, zebra finches that eat at night experience fat accumulation and weight gain, as well as changes in gene expression related to carbohydrate and lipid metabolism. Furthermore, nocturnal eating is associated with poorer sleep quality.
PHYSIOLOGY & BEHAVIOR
(2022)
Article
Environmental Sciences
Amaan Buniyaadi, Abhilash Prabhat, Sanjay Kumar Bhardwaj, Vinod Kumar
Summary: This study reveals the crucial role of nocturnal melatonin secretion in the cognitive performance of diurnal animals, highlighting the negative impact of environmental threats such as light pollution on melatonin levels and cognitive function.
ENVIRONMENTAL POLLUTION
(2022)
Article
Behavioral Sciences
Abhilash Prabhat, Amaan Buniyaadi, Sanjay Kumar Bhardwaj, Vinod Kumar
Summary: We investigated the combined effect of daily feeding and starvation periods on metabolism and reproduction in zebra finches. The time-restricted feeding (TRF) regimen caused significant changes in hepatic gene expression related to metabolism, as well as a reduction in plasma testosterone and estradiol levels and delayed nest-building and egg laying. We also observed decreased expression of genes related to motivation and affiliation in the hypothalamus and genes related to reproduction in the testes and ovary. These findings highlight the importance of daily food deprivation on the metabolism and reproduction of diurnal animals.
HORMONES AND BEHAVIOR
(2023)
Article
Zoology
Sheikh Tahajjul Taufique, Abhilash Prabhat, Vinod Kumar
JOURNAL OF EXPERIMENTAL ZOOLOGY PART A-ECOLOGICAL AND INTEGRATIVE PHYSIOLOGY
(2019)
Article
Multidisciplinary Sciences
S. K. Tahajjul Taufique, Neelu Anand Jha, Vinod Kumar