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Animal Vigilance builds on the author's previous publication with Academic Press (Social Predation: How Group Living Benefits Predators and Prey) by developing several other themes including the development and mechanisms underlying vigilance, as well as developing more fully the evolution and function of vigilance.Animal vigilance has been.

Myth and media typically cast animals we consider predators or carnivores as unthinking killers-dangerous, unpredictable, and devoid of emotion. But is this portrait valid? By exploring their inner lives, this pioneering book refutes the many misperceptions that hide the true nature of these animals. We discover that great white sharks express tender maternal feelings, rattlesnakes make friends, orcas abide by an ancient moral code, and much more. Using the combined lenses of natural history, neuroscience, and psychology, G. A. Bradshaw describes how predators share the rainbow of emotions that humans experience, including psychological trauma. Renowned for leading research on post-traumatic stress disorder (PTSD) in elephants and other species, Bradshaw decries the irrational thinking behind wildlife policies that equate killing carnivores with \"conservation.\" In its place, she proposes a new, ethical approach to coexistence with the planet's fiercest animals.

Lateralization of cognitive functions impacts many behaviours related to fitness and, in most species, varies greatly among individuals. Laboratory and field studies have suggested that within-species variation in lateralization is partly due to phenotypic plasticity. For example, in fish, prey that have experienced predation risk during early ontogeny develop highly lateralized phenotypes, and this lateralization often favours prey in evading predators. In contexts other than predation, plasticity of lateralization has also been reported for adult fish. Therefore, we asked whether adult fathead minnows, Pimephales promelas, exposed to high predation risk would also show plasticity linked to increase lateralization. We exposed minnows to conspecific alarm cues for up to 8 days to simulate predation risk and tested their lateralization with a standard detour test. The treatment affected lateralization but in an unexpected direction: Individuals exposed to high predation risk showed lower lateralization scores compared to control fish. In addition, fish within groups exposed to risk reduced the variability in their directionality of lateralization; that is, they showed a similar turning preference in the detour task. Our study suggests that lateralization can vary in response to predation risk in adult fish. La latéralisation des fonctions cognitives influe sur de nombreux comportements liés à la forme physique et, chez la plupart des espèces, varie grandement d'un individu à l'autre. Des études menées en laboratoire et sur le terrain donnent à penser que la variation de la latéralisation d'une espèce à l'autre est en partie attribuable à la plasticité phénotypique. Par exemple, chez les poissons, les proies qui ont été exposées à un risque de prédation au début de l'ontogenèse développent des phénotypes hautement latéralisés, et cette latéralisation aide souvent les proies à échapper à leurs prédateurs. Dans les contextes autres que la prédation, la plasticité de la latéralisation a aussi été rapportée chez les poissons adultes. Par conséquent, nous avons vérifié si des ménés à grosse tête du Nord adultes (Pimephales promelas) exposés à un risque de prédation élevé présenteraient également une plasticité associée à une latéralisation accrue. Nous avons exposé ces ménés à des signaux d'alarme conspécifiques pendant une durée atteignant 8 jours afin de simuler le risque de prédation et évaluer leur latéralisation au moyen d'un test de détour normalisé. Le traitement avait une incidence sur la latéralisation, mais dans une direction inattendue : Les individus exposés à un risque de prédation élevé présentaient des scores de latéralisation moins élevés en comparaison des poissons du groupe de contrôle. De plus, les poissons des groupes exposés au risque présentaient une variabilité moindre dans la directionnalité de la latéralisation; en d'autres mots, ils présentaient une préférence similaire au changement de direction dans la tâche du détour. Notre étude donne à penser que la latéralisation peut varier en réponse au risque de prédation chez les poissons adultes. Public Significance Statement In individuals of many species, including humans, one brain hemisphere, either the left or the right, preferentially performs specific cognitive tasks. We showed that fish exposed to predation risk were less likely to show this cognitive lateralization. This suggests that lateralization is plastic and varies according to the individual's experience.

This book introduces readers to the fierce cougar, the master of the sneak attack. Readers will also learn about other animals that are excellent at the art of ambush, including leopard seals, crocodiles, praying mantises, and tigers. These hungry hunters will come alive as students learn about their habitat, social structure, and anatomy. Fascinating facts paired with eye-catching photographs will spark the interest of animal-loving readers and deepen their understanding of animal behavior and ecosystems.

Readers with a taste for the grisly realism of nature will revel in the latest Davies and Layton collaboration, featuring the ways in which animals cause lasting harm or death to other animals, including humans.