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Thanatology. Autopsy (1890) by Enrique Simonet. Thanatology is the scientific study of death and the losses brought about as a result. It investigates the mechanisms and forensic aspects of death, such as bodily changes that accompany death and the postmortem period, as well as wider psychological and social aspects related to death.
Lyell discusses a struggle between organisms that causes one species to become extinct; Wallace may have taken the phrase struggle for existence from this example. Additionally, Wallace claimed that it was the collection of chapters 3–12 of the first volume of An Essay on the Principle of Population that helped him develop his theory. "In ...
Programmed cell death ( PCD; sometimes referred to as cellular suicide [1]) is the death of a cell as a result of events inside of a cell, such as apoptosis or autophagy. [2] [3] PCD is carried out in a biological process, which usually confers advantage during an organism's lifecycle. For example, the differentiation of fingers and toes in a ...
Entropy and life. Research concerning the relationship between the thermodynamic quantity entropy and both the origin and evolution of life began around the turn of the 20th century. In 1910 American historian Henry Adams printed and distributed to university libraries and history professors the small volume A Letter to American Teachers of ...
Self-preservation is a behavior or set of behaviors that ensures the survival of an organism. [1] It is thought to be universal among all living organisms. For sentient organisms, pain and fear are integral parts of this mechanism. Pain motivates the individual to withdraw from damaging situations, to protect a damaged body part while it heals ...
The death drive opposes Eros, the tendency toward survival, propagation, sex, and other creative, life-producing drives. The death drive is sometimes referred to as "Thanatos" in post-Freudian thought, complementing "Eros", although this term was not used in Freud's own work, being rather introduced by Wilhelm Stekel in 1909 and then by Paul ...
A narrative technique (also, in fiction, a fictional device) is any of several specific methods the creator of a narrative uses [1] —in other words, a strategy applied in the delivering of a narrative to relay information to the audience and to make the narrative more complete, complex, or engaging. Some scholars also call such a technique a ...
Life is a quality that distinguishes matter that has biological processes, such as signaling and self-sustaining processes, from matter that does not. It is defined descriptively by the capacity for homeostasis, organisation, metabolism, growth, adaptation, response to stimuli, and reproduction. All life over time eventually reaches a state of ...