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1. Dictionary

   disappearance

   /ˌdɪsəˈpɪərəns/

   noun

   • 1. an act of someone or something ceasing to be visible: "the sun's disappearance at night" Similar vanishingfadingfading/melting awaypassing from sightreceding from viewwithdrawaldepartureretirementretreatgoingpassingexitebbwanedissipationdematerializationdissolutionevaporationliterary:evanescenceOpposite appearancereappearance
   • ▪ an act or the fact of someone or something going missing: "the police were investigating her disappearance" Similar losstheftrobberystealingthievingrobbingpilferingpilferagepurloiningOpposite recovery
   • ▪ the process of something ceasing to exist or be in use: "the disappearance of grammar schools" Similar dying outdyingdeathextinctioncoming to an endendingpassing awaypassing into oblivionexpiryvanishingperishingwithering awaypetering outfizzling out

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2. en.wikipedia.org › wiki › ExtinctionExtinction - Wikipedia

   en.wikipedia.org › wiki › Extinction

   • Cached

   2 days ago · 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. Because a species' potential range may be very large, determining this moment is difficult, and is usually done retrospectively.

3. www.britannica.com › science › extinction-biologyExtinction | Definition & Examples | Britannica

   www.britannica.com › science › extinction-biology

   • Cached

   Jul 1, 2024 · Extinction, in biology, is the dying out or extermination of a species. It occurs when species are diminished because of environmental forces (natural or human-made) or because of evolutionary changes in their members. Learn more about mass extinctions and modern extinctions.

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4. en.wikipedia.org › wiki › Roanoke_ColonyRoanoke Colony - Wikipedia

   en.wikipedia.org › wiki › Roanoke_Colony

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   2 days ago · Roanoke Colony ( / ˈroʊənoʊk / ROH-ə-nohk) was an attempt by Sir Walter Raleigh to found the first permanent English settlement in North America. The colony was founded in 1585, but when it was visited by a ship in 1590, the colonists had inexplicably disappeared.

5. www.smithsonianmag.com › science-nature › has-lifeHas Life on Earth Survived More Than Five Mass Extinctions?

   www.smithsonianmag.com › science-nature › has-life

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   Jul 12, 2024 · The rapid disappearance of species, especially, can fundamentally reshape entire ecosystems and what we think of as the “history of life.” ... “Experts usually define mass extinction as ...

6. www.britannica.com › animal › dinosaurDinosaur - Extinction Causes, Evidence, & Theory | Britannica

   www.britannica.com › animal › dinosaur

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   Jul 14, 2024 · The “moments” of apparently high extinction levels among dinosaurs occurred at two points in the Triassic (about 221 million and 210 million years ago), perhaps at the end of the Jurassic (145 million years ago), and, of course, at the end of the Cretaceous (66 million years ago).

7. en.wikipedia.org › wiki › Legio_IX_HispanaLegio IX Hispana - Wikipedia

   en.wikipedia.org › wiki › Legio_IX_Hispana

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   2 days ago · Legio IX Hispana ("9th Spanish Legion"), [1] also written as Legio VIIII Hispana, [2] was a legion of the Imperial Roman army that existed from the 1st century BC until at least 120 AD. The legion fought in various provinces of the late Roman Republic and early Roman Empire.

8. www.britannica.com › topic › homininHominin | Definition, Characteristics, & Family Tree | Britannica

   www.britannica.com › topic › hominin

   • Cached

   Jul 17, 2024 · Hominin, any member of the zoological ‘tribe’ Hominini (family Hominidae, order Primates), of which only one species exists today—Homo sapiens. The term is used most often to refer to extinct members of the human lineage, including Homo neanderthalensis, Homo erectus, and various species of Australopithecus.