Question

According to the IUCN Red List, what defines a 'Critically Endangered' species?

1. A species facing a moderate risk of extinction in the wild.
2. A species whose population has declined by 90% in the last 10 years.
3. A species that is not currently threatened but may be in the near future.
4. A species for which there is insufficient information to assess its risk.

• A. 2 only
• B. 1 only
• C. All
• D. 3 only

Answer 1

Answer:

A. 2 only

Extinct

• A species is considered extinct when the last known individual of that taxon has died.

Extinct in the Wild

• A species is considered extinct in the wild when all its individuals survive only in captivity or outside their natural habitat, such as in agricultural areas.

Critically Endangered

• Species that are considered to be facing an extremely high risk of extinction in the wild.

• Species whose population has declined by 90% in the last 10 years.