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Apparent death[a] is a behavior in which animals take on the appearance of being dead. It is an immobile state most often triggered by a predatory attack and can be found in a wide range of animals from insects and crustaceans to mammals, birds, reptiles, amphibians, and fish. [1][5][2] Apparent death is separate from the freezing behavior seen ...
Fight-or-flight response. A dog and a cat expressing the fight (top) and flight (bottom) response simultaneously. The fight-or-flight or the fight-flight-freeze-or-fawn[1] (also called hyperarousal or the acute stress response) is a physiological reaction that occurs in response to a perceived harmful event, attack, or threat to survival. [2]
Dog behavior is the internally coordinated responses of individuals or groups of domestic dogs to internal and external stimuli. [1] It has been shaped by millennia of contact with humans and their lifestyles. As a result of this physical and social evolution, dogs have acquired the ability to understand and communicate with humans. [2]
Tinbergen's four questions. Tinbergen's four questions, named after 20th century biologist Nikolaas Tinbergen, are complementary categories of explanations for animal behaviour. These are also commonly referred to as levels of analysis. [1] It suggests that an integrative understanding of behaviour must include ultimate (evolutionary ...
That's the nice way of saying that around 19% of those animals — more than 30,000 so far this year — died in custody in California, some from illness or injury or despair but most by ...
Fatal dog attacks are human victim's deaths caused by dogs. The study of fatal dog attacks can lead to prevention techniques which can help to reduce all dog bite injuries, not only fatalities. [1] Dog bites and attacks can result in pain, bruising, wounds, bleeding, soft tissue injury, broken bones, loss of limbs, scalping, disfigurement, life ...
Learned helplessness is the behavior exhibited by a subject after enduring repeated aversive stimuli beyond their control. It was initially thought to be caused by the subject's acceptance of their powerlessness, by way of their discontinuing attempts to escape or avoid the aversive stimulus, even when such alternatives are unambiguously ...
The mechanisms of reproductive isolation have been classified in a number of ways. Zoologist Ernst Mayr classified the mechanisms of reproductive isolation in two broad categories: pre-zygotic for those that act before fertilization (or before mating in the case of animals) and post-zygotic for those that act after it. [5]