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If it loses all of its native speakers, it becomes an extinct language. UNESCO defines four levels of language endangerment between "safe" (not endangered) and "extinct": [1] Vulnerable; Definitely endangered; Severely endangered; Critically endangered
A dead language may still be studied through recordings or writings, but it is still dead or extinct unless there are fluent speakers. [2] Although languages have always become extinct throughout human history, they are currently dying at an accelerated rate because of globalization , mass migration , cultural replacement, imperialism ...
Extinction is the termination of a taxon by the death of its last member.A taxon may become functionally extinct before the death of its last member if it loses the capacity to reproduce and recover.
A language like Latin is not extinct in this sense, because it evolved into the modern Romance languages; it is impossible to state when Latin became extinct because there is a diachronic continuum (compare synchronic continuum) between ancestors Late Latin and Vulgar Latin on the one hand and descendants like Old French and Old Italian on the ...
With no remains younger than 3,800 YBP ever recovered, the Indian aurochs was the first of the three aurochs subspecies to become extinct; the Eurasian aurochs (B. p. primigenius) and the North African aurochs (B. p. mauritanicus) persevered longer, with the latter being known to the Roman Empire, and the former surviving until the mid-17th ...
The biological and geological future of Earth can be extrapolated based on the estimated effects of several long-term influences. These include the chemistry at Earth's surface, the cooling rate of the planet's interior, gravitational interactions with other objects in the Solar System, and a steady increase in the Sun's luminosity.
This page features lists of species and organisms that have become extinct. The reasons for extinction range from natural occurrences, such as shifts in the Earth's ecosystem or natural disasters, to human influences on nature by the overuse of natural resources, hunting and destruction of natural habitats.
Three tiger subspecies are extinct (see List of carnivorans by population). [2] The IUCN Red List is a list of species which have been assessed according to a system of assigning a global conservation status. According to the latest system used by the IUCN, a species can be "Data Deficient" (DD) species – species for which more data and ...