### Clue: Approve a special number to see ruminant (5)
### Answer: OKAPI 
 ### Explanation: Definition: ruminant
 OK(to approve;to assent to) + A + PI(the unique number which is the ratio of the circumference of any circle to its diameter).
Defn: … native to the rainforests of the Congo.
The following pictures have unidentified links to the puzzle.
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