How to babysit an orangutan

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Across
  1. 4. The feeling of being annoyed.
  2. 6. Being in danger of no longer existing as a species.
Down
  1. 1. The act of working togther smoothly for a purpose.
  2. 2. Having to do with the face.
  3. 3. To take something secretly.
  4. 5. Resentful of someone relationship with another person.