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- Extinction - Wikipedia
Species that are not globally extinct are termed extant Those species that are extant, yet are threatened with extinction, are referred to as threatened or endangered species The dodo of Mauritius, shown here in a 1626 illustration by Roelant Savery, is an often-cited example of modern extinction [28]
- Extinction | Definition Examples | Britannica
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
- Mass Extinctions Through Geologic Time - U. S. National Park Service
Extinction is a natural part of the changing tableau of life on Earth, and it interplays with evolution Its main importance is that it is one of the factors that has led to the diversity of life through geologic time
- UC Davis Study Reveals How Earth’s Greatest Extinction Really Happened
Around 252 million years ago, the Earth experienced its largest mass extinction Known as the “Great Dying,” this cataclysmic event wiped out more than 81% of marine species and 70% of life on land Currently, the prevailing theory is that the extinction both in the oceans and on land was triggered simultaneously by massive volcanic eruptions As greenhouse gases and toxic substances were
- What Is Extinction? Causes, History, and Current Crisis
Extinction is the permanent termination of a species When a species becomes extinct, all its members have died, marking an irreversible end to a unique evolutionary lineage
- Extinction - National Geographic Society
Extinction is the dying out of a species Extinction plays an important role in the evolution of life because it opens up opportunities for new species to emerge
- What Makes a Species Go Extinct? A Biological Perspective
Extinction is a natural part of life’s history, but the pace and scale of modern extinctions reflect a profound imbalance As stewards of a planet bursting with life, humans now face the responsibility of choosing which species we carry with us into the future
- What Causes Extinction? - AMNH
Find out how humans are threatening species, and what we can do to help protect them Humans use thousands of the world’s species in their daily lives for food, shelter, and medicine But these natural resources are limited
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