By Tayyaba Rehman & Maham Liaqat — Updated on April 1, 2024
Extinct refers to species no longer living, while extant means still in existence.
Difference Between Extinct and Extant
Table of Contents
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Key Differences
Extinct species are those that have no living members left, having disappeared from the Earth either recently or millions of years ago. This term is often associated with animals, plants, or other organisms that once lived but no longer have any representatives alive today. Whereas, extant species are those that are currently living and can be found on Earth. This distinction highlights the difference between organisms that have ceased to exist and those that continue to contribute to the biodiversity of the planet.
The concept of extinct is critical in understanding the history of life on Earth, including the natural processes or human activities that have led to the disappearance of species. It brings attention to the irreversible loss of biodiversity and the importance of conservation efforts. On the other hand, identifying species as extant emphasizes their survival despite various threats, and underscores the importance of protecting existing biodiversity to prevent further extinctions.
While extinct species can only be studied through fossils, historical records, or other forms of indirect evidence, extant species can be observed, studied in their natural habitats, and protected through conservation efforts. The study of extinct species provides insight into the Earth's past environments, evolutionary processes, and how species have adapted (or failed to adapt) over time, whereas the study of extant species focuses on understanding current ecosystems, biological functions, and conservation needs.
Efforts to prevent extinction focus on extant species at risk of disappearing due to factors such as habitat loss, climate change, pollution, and overexploitation. Conservationists and scientists work to understand and mitigate these threats to ensure that extant species do not become extinct. This involves habitat preservation, legal protection, breeding programs, and other strategies to maintain or increase population sizes.
The contrast between extinct and extant is also a reminder of the dynamic nature of Earth's biodiversity. While some species become extinct, others adapt and thrive. This dynamic underscores the interconnectedness of ecosystems and the impact of changes within them. Protecting extant species is crucial for maintaining ecological balance and ensuring the survival of Earth's diverse forms of life.
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Comparison Chart
Definition
No longer existing; having no living members
Still in existence; currently living
Examples
Dodo, Tasmanian tiger
Asian elephant, blue whale
Study Focus
Understanding past life, causes of extinction
Observing current life, conservation efforts
Conservation
Not applicable; focuses on learning from past
Crucial for preventing future extinctions
Importance
Highlights biodiversity loss, historical insight
Emphasizes survival, biodiversity protection
Compare with Definitions
Extinct
Complete disappearance from existence.
The woolly mammoth is an example of an extinct species due to climate change and hunting.
Extant
Surviving members of a group.
Extant manuscripts from the Middle Ages provide insight into historical cultures.
Extinct
No longer existing, especially a species with no living members.
The passenger pigeon became extinct in the early 20th century.
Extant
Still existing; not extinct or destroyed.
Extant rainforests are crucial for biodiversity and the global climate.
Extinct
Having disappeared from the planet.
Dinosaurs are extinct, with their last representatives dying out millions of years ago.
Extant
Presently observed in natural habitats.
Extant populations of the mountain gorilla are critically endangered.
Extinct
The end of an organism or a species.
Numerous factors can contribute to the extinction of species, including climate change.
Extant
Continuing to exist today.
Extant species of whales face numerous threats, including hunting and pollution.
Extinct
Loss of biodiversity.
The extinction of the dodo bird is a well-documented case of human impact on species.
Extant
Currently living or in existence.
The coelacanth is an example of an extant species once thought to be extinct.
Extinct
No longer existing or living
An extinct species.
Extant
Still in existence; not destroyed, lost, or extinct
Extant manuscripts.
Extinct
No longer burning or active
An extinct volcano.
Extant
(Archaic) Standing out; projecting.
Extinct
No longer in use
An extinct custom.
Extant
Still in existence; not having disappeared.
Extant manuscripts of the Old Testament
Extinct
(dated) Extinguished, no longer alight (of fire, candles etc.)
Poor Edward's cigarillo was already extinct.
Extant
Still alive; not extinct.
Extant birds
Extinct
No longer used; obsolete, discontinued.
The title became extinct when the last baron died.
Luckily, such ideas about race are extinct in current sociological theory.
Extant
(obsolete) Standing out, or above the rest.
Extinct
(of a group of organisms, as a species) No longer in existence; having died out.
The dinosaurs have been extinct for millions of years.
Extant
Standing out or above any surface; protruded.
That part of the teeth which is extant above the gums.
A body partly immersed in a fluid and partly extant.
Extinct
(geology) No longer active.
Most of the volcanos on this island are now extinct.
They found the sites of extinct geysers.
Extant
Still existing; not destroyed or lost; outstanding.
Writings that were extant at that time.
The extant portraits of this great man.
Extinct
(transitive) To make extinct; to extinguish or annihilate.
Extant
Publicly known; conspicuous.
Extinct
Extinguished; put out; quenched; as, a fire, a light, or a lamp, is extinct; an extinct volcano.
Light, the prime work of God, to me is extinct.
Extant
Still in existence; not extinct or destroyed or lost;
Extant manuscripts
Specimens of graphic art found among extant barbaric folk
Extinct
Once existing as a species but now having no living members; - used of species of living organisms, especially of animals and plants; as, dinosaurs are now extinct; the dodo bird is extinct.
Extinct
To cause to be extinct.
Extinct
No longer in existence; lost or especially having died out leaving no living representatives;
An extinct species of fish
An extinct royal family
Extinct laws and customs
Extinct
Of e.g. volcanos; permanently inactive;
An extinct volcano
A dormant volcano
Extinct
Of a fire; being out or having grown cold;
Threw his extinct cigarette into the stream
The fire is out
Common Curiosities
What does extinct mean?
Extinct refers to a species that no longer has any living individuals, having disappeared from Earth.
What is an extant species?
An extant species is one that is still in existence today, continuing to live and reproduce.
How can we protect extant species?
Protecting extant species involves conservation efforts like habitat preservation, legal protection, anti-poaching measures, and breeding programs.
How does the extinction of a species affect ecosystems?
The extinction of a species can disrupt ecosystems, leading to further extinctions and loss of biodiversity, as species are interconnected.
Can extinct species ever become extant again?
Once a species is extinct, it cannot become extant again in the natural world, though efforts like de-extinction through genetic technologies are being explored.
Why do species become extinct?
Species can become extinct due to natural processes like climate change or human activities such as habitat destruction, pollution, and overexploitation.
What role do humans play in the extinction of species?
Humans play a significant role in the extinction of species through activities that reduce biodiversity, including habitat destruction, pollution, and climate change.
What is the difference between endangered and extinct?
Endangered refers to species at risk of extinction in the near future, while extinct means there are no longer any living members of the species.
Why is it important to study extinct species?
Studying extinct species helps us understand past biodiversity, evolutionary processes, and how species adapt to changing environments.
What are some successful examples of conservation?
Successful conservation examples include the recovery of species like the bald eagle and American alligator, which were once endangered but are now thriving due to protection efforts.
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Author Spotlight
Written by
Tayyaba Rehman
Tayyaba Rehman is a distinguished writer, currently serving as a primary contributor to askdifference.com. As a researcher in semantics and etymology, Tayyaba's passion for the complexity of languages and their distinctions has found a perfect home on the platform. Tayyaba delves into the intricacies of language, distinguishing between commonly confused words and phrases, thereby providing clarity for readers worldwide.
Co-written by
Maham Liaqat
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