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Autothysis (from the Greek roots autos-αὐτός "self" and thysia θυσία "sacrifice") or suicidal altruism is the process where an animal destroys itself via an internal rupturing or explosion of an organ which ruptures the skin.
Many weakly-defended animals, including moths, butterflies, mantises, phasmids, and cephalopods such as octopuses, make use of patterns of threatening or startling behaviour, such as suddenly displaying conspicuous eyespots, so as to scare off or momentarily distract a predator, thus giving the prey animal an opportunity to escape. In the ...
Abnormal behaviour in animals can be defined in several ways. Statistically , abnormal is when the occurrence, frequency or intensity of a behaviour varies statistically significantly , either more or less, from the normal value.
Many animals that appear to be depressed or grieving begin to exhibit self-destructive behavior that sometimes ends in death, but this is not considered suicide, as the achieving of death was not necessarily the purpose or objective of the behaviors. [13]
Animals in a social group (of kin) often work cooperatively in order to survive, but when one member perceives itself as a burden for an extended period of time, it may commit self-destructive behavior. [7] This allows its relatives to have a better chance at survival, and if enough close relatives survive, then its genes get indirectly passed ...
However, animals may also imitate the behavior of a small rodent or alternative prey item for the predator; [13] [14] [15] imitate young [12] or nesting behaviors such as brooding (to cause confusion as to the true location of the nest), [13] mimic foraging behaviors away from the nest, [9] or simply draw attention to oneself.
These behaviors sometimes share characteristics with obsessive-compulsive behavior, including a high degree of similarity in form and use among many individuals and a repetitive dimension. There are many observable animal behaviors with characteristic, highly conserved patterns. One example is grooming behavior in rats. This behavior is defined ...
Deception in animals is the voluntary or involuntary transmission of misinformation by one animal to another, of the same or different species, in a way that misleads ...