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Extinctions are a normal part of the evolutionary process, and the background extinction rate is a measurement of "how often" they naturally occur.Normal extinction rates are often used as a comparison to present day extinction rates, to illustrate the higher frequency of extinction today than in all periods of non-extinction events before it.
The prospect of extinction is itself a break from previous religious and mythological eschatology in the measure that it is thought as an absolute and naturalistic event. [9] As such, human extinction is a recent invention in the intellectual history of calamity. [5] Its major historical source is present in science fiction literature.
Recently, it has been reported that the extinction rate of frogs is increasing. Based on observed extinction rates far beyond expected background extinction rates, we can predict that an event of a catastrophic nature is headed our way. [16] A decade ago, Panamanian golden frogs were plentiful in numbers and easy to find around Panama. However ...
The philosophy of evolution is the branch of philosophy that examines the philosophical implications of evolution and the intersections of evolutionary biology with other fields such as epistemology, ethics, aesthetics, and political philosophy.
An extinction event (also known as a mass extinction or biotic crisis) is a widespread and rapid decrease in the biodiversity on Earth.Such an event is identified by a sharp fall in the diversity and abundance of multicellular organisms.
Rapid environmental changes typically cause extinctions. [28] Of all species that have existed on Earth, 99.9 percent are now extinct. [29] Since life began on Earth, five major mass extinctions have led to large and sudden drops in the variety of species. The most recent, the Cretaceous–Paleogene extinction event, occurred 66 million years ...
Already threatened by the advancement in special effects that create computer-generate crowds, the background acting community is bracing for possible extinction in the wake of COVID-19.
Red list categories of the IUCN Demonstrator against biodiversity loss, at Extinction Rebellion (2018).. The current rate of global biodiversity loss is estimated to be 100 to 1000 times higher than the (naturally occurring) background extinction rate, faster than at any other time in human history, [25] [26] and is expected to grow in the upcoming years.