Types of Extinction
Biological Extinction: When the population of an entire species or subspecies is destroyed and and there is no animal of the same species or subspecies left. These species disappear from the Earth and most are never seen again. But every now and then a species that is believed to be extinct manages to evade human eyes and lives in the shadow of civilization.
Functional Extinction: When the population of a species or subspecies is is so small that the species has no chance of survival. This can happen when an animal doesn't play a big role in its ecosystem. An indication of this type of extinction is when an animal stops appearing in fossil record.
Mass Extinction: When the entire population of a species suddenly dies out. These are very rare in nature. Usually these types of extinctions occur due to a natural disaster and wipe out entire communities. These disasters are not necessarily caused by natural disasters, since some claim we are living through a sixth mass extinction. This sixth mass extinction is likely due to human activities changing the world faster than other species can adapt.
Functional Extinction: When the population of a species or subspecies is is so small that the species has no chance of survival. This can happen when an animal doesn't play a big role in its ecosystem. An indication of this type of extinction is when an animal stops appearing in fossil record.
Mass Extinction: When the entire population of a species suddenly dies out. These are very rare in nature. Usually these types of extinctions occur due to a natural disaster and wipe out entire communities. These disasters are not necessarily caused by natural disasters, since some claim we are living through a sixth mass extinction. This sixth mass extinction is likely due to human activities changing the world faster than other species can adapt.
“Earth provides enough to satisfy every man's needs, but not every man's greed.” ― Mahatma Gandhi