Yahoo Web Search

Search results

1. Top stories

   • 

     Last surviving woolly mammoths were inbred but not doomed to extinction – study

     The last surviving woolly mammoths on Earth were inbred but not to the extent that it can explain their ultimate and mysterious extinction, a study suggests. Experts say the ...

     The Irish News

     2 hours ago

   • 

     The Conversation via Yahoo

     Did inbreeding cause the woolly mammoth’s extinction? Our research suggests it was more sudden than that

     2 hours ago

   • 

     Shropshire Star

     Bornean elephant assessed as endangered in new threatened species list

     7 hours ago

   • 

     USA TODAY Sports via Yahoo

     Protesters on course delay Travelers Championship. Scottie Scheffler waits on 18th hole

     4 days ago

   • LADbible

     'De-extinction' firm planning to resurrect extinct animals using Jurassic Park-style technology

     22 hours ago

   • Sky News via Yahoo

     Extinction Rebellion climate change protest disrupts PGA golf tournament in Connecticut

     3 days ago

   View all

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

   en.wikipedia.org › wiki › Extinction

   • Cached

   e. 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. Videos

   • 

     2:39

     youtube.com

     Extinction | Official Trailer [HD] | Netflix

     11 Jul 2018

     7.5M views

   • 

     0:28

     youtube.com

     The 5 Major Extinctions of Our Planet

     9 Nov 2022

     68.3K views

   • 

     9:56

     youtube.com

     6 of the most devastating mass extinctions

     22 Dec 2022

     2.2K views

   View all

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

   www.britannica.com › science › extinction-biology

   • Cached

   2 days ago · Extinction is the dying out or extermination of a species due to environmental or evolutionary factors. Learn about the different types of extinction, the causes of human-induced extinction, and the current mass extinction event from Britannica's experts.

   • 
   • 
   • 
   • 

5. www.nationalgeographic.org › encyclopedia › extinctionExtinction - National Geographic Society

   www.nationalgeographic.org › encyclopedia › extinction

   • Cached

   Oct 19, 2023 · extinction. noun. process of complete disappearance of a species from Earth. fossil. noun. remnant, impression, or trace of an ancient organism. Jurassic. adjective. having to do with the time period between 190 million and 140 million years ago, characterized by an abundance of dinosaurs and ammonites.

6. People also ask

   What is extinction in biology?

   • The Editors of Encyclopaedia Britannica This article was most recently revised and updated by Adam Augustyn. 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.

   Extinction | Definition & Examples | Britannica

   www.britannica.com/science/extinction-biology

   See all results for this question

   What causes extinction of a species?

   • Extinction occurs when species are diminished because of environmental forces (habitat fragmentation, global change, natural disaster, overexploitation of species for human use) or because of evolutionary changes in their members (genetic inbreeding, poor reproduction, decline in population numbers).

   Extinction | Definition & Examples | Britannica

   www.britannica.com/science/extinction-biology

   See all results for this question

   Is extinction natural?

   • Extinction happens when environmental factors or evolutionary problems cause a species to die out. The disappearance of species from Earth is ongoing, and rates have varied over time. A quarter of mammals is at risk of extinction, according to IUCN Red List estimates. To some extent, extinction is natural.

   Extinct species, facts and information - National Geographic

   www.nationalgeographic.com/animals/article/extinct-species

   See all results for this question

   What is mass extinction?

   • Although extinction is an ongoing feature of Earth’s flora and fauna (the vast majority of species ever to have lived are extinct), the fossil record reveals five unusually large extinctions, called mass extinction events, each involving the demise of vast numbers of species.

   Extinction | Definition & Examples | Britannica

   www.britannica.com/science/extinction-biology

   See all results for this question

   Why is extinction a problem?

   • Recent estimates suggest that extinction threatens up to a million species of plants and animals, in large part because of human activities such as deforestation, hunting, and overfishing. Other serious threats include the spread of invasive species and diseases from human trade, as well as pollution and human-caused climate change.

   Mass extinction facts and information from National Geographic

   www.nationalgeographic.com/science/article/mass-extinction

   See all results for this question

   Is the rate of extinction constant?

   • But the rate of extinction is far from constant. At least a handful of times in the last 500 million years, 75 to more than 90 percent of all species on Earth have disappeared in a geological blink of an eye in catastrophes we call mass extinctions. Though mass extinctions are deadly events, they open up the planet for new forms of life to emerge.

   Mass extinction facts and information from National Geographic

   www.nationalgeographic.com/science/article/mass-extinction

   See all results for this question

7. www.nationalgeographic.com › mass-extinctionMass extinction facts and information from National Geographic

   www.nationalgeographic.com › mass-extinction

   • Cached

   Sep 26, 2019 · Learn about the five major mass extinctions in Earth's history, from the Ordovician-Silurian to the Permian-Triassic, and how they were triggered by volcanism, glaciation, asteroids and other events. Find out how these catastrophes shaped the evolution of life on Earth and what lessons they offer for today.

   • Video Duration: 5 min

   • Author: Michael Greshko,National Geographic Staff

8. www.bbc.com › news › science-environment-63875331Biodiversity: What is a mass extinction and are we causing one?

   www.bbc.com › news › science-environment-63875331

   • Cached

   Dec 9, 2022 · What is a mass extinction? Mass extinctions are episodes in Earth's history when the planet rapidly loses three quarters or more of its species. Scientists who study the fossil record refer to the ...

   • 
   • 
   • 
   • 

9. Images

   • 
   • 
   • 
   • 

   View all

10. www.nationalgeographic.com › animals › articleExtinct species, facts and information - National Geographic

    www.nationalgeographic.com › animals › article

    • Cached

    Feb 5, 2019 · Most of the Earth’s species went extinct roughly 266 million to 252 million years ago in the Permian extinction. Those losses, however, also paved the way for dinosaurs to evolve into existence ...

11. www.nationalgeographic.com › animals › articleWhat is extinction? The answer is complicated.

    www.nationalgeographic.com › animals › article

    • Cached

    May 29, 2019 · Learn about the different categories and concepts of extinction, from critically endangered to extinct in the wild, and how humans have accelerated species loss. See photos and stories of animals facing extinction or rediscovery.