Extinct is spelled E-X-T-I-N-C-T. It describes species that no longer exist, like the dodo bird or woolly mammoth.
Extinct means a species has died out completely. This happens when organisms can no longer survive due to changes in their environment, competition, or other factors. For example, the dodo bird became extinct in the late 17th century because of hunting and habitat destruction by humans.
There are two main types of extinction:
The most famous mass extinction occurred 66 million years ago, ending the reign of the dinosaurs.
People often confuse extinct with extinguished. While both words describe something that has ended, extinct specifically refers to species that no longer exist. Extinguished typically refers to fires or flames being put out.
| Word | Meaning | Example |
|---|---|---|
| Extinct | Species no longer exists | The dodo bird is extinct. |
| Extinguished | Fire or flame put out | She extinguished the candle. |
Many people don't realize that extinction is a permanent event. Once a species goes extinct, it never comes back. This is different from endangered species, which may still have a chance to recover if conservation efforts are successful.
I visited the La Brea Tar Pits in Los Angeles, where fossils of extinct Ice Age animals like saber-toothed cats and dire wolves are displayed. Seeing these remnants firsthand drove home the reality of extinction.