What does Endangered mean?

Officially, threatened species are those listed as Critically Endangered (CR), Endangered (EN) or Vulnerable (VU).
Practically this means:

• Critically Endangered (CR): A species facing an extremely high risk of extinction in the wild.
• Endangered (EN): A species considered to be facing a very high risk of extinction in the wild.
• Vulnerable (VU): A species considered to be facing a high risk of extinction in the wild.