True. The class ferns, known as Polypodiopsida, includes three major living groups: the true ferns, horsetails, and whisk ferns. Additionally, there are several extinct groups of ferns that existed in prehistoric times. Ferns are diverse and have a significant evolutionary history.
A society where there are several cultures or ethnic groups living together.
in the time it has been since you asked that, several dozen species have gone extinct.
Extinct - no more, not living Living- a lot, alive
Von carolinius
no. they are not extinct. they are still living in madagascar.
you can't have an extinct animal living. It can be endangered or close to being extinct, but not extinct.
when there are no living members of a species the species is said to be "extinct".
You obviously hadn't noticed that living things have not become extinct. There are still plenty of them about.
Tigers are not extinct. They are still living creatures on earth.
The are examples of stromatolites still living. They are not extinct.
Hippopotamus are not extinct - they are alive and well and living in Africa
When no living member of a species exists, the species is considered extinct. Extinction occurs when a species has completely disappeared from the Earth, with no individuals remaining alive anywhere in the world.