Seen in book, apish animals (6)

I believe the answer is:

okapis

'animals' is the definition.
The answer is an example.

'seen in book apish' is the wordplay.
'seen in' indicates a hidden word.
'OKAPIS' is hidden in the letters of 'book apish'.

(Other definitions for okapis that I've seen before include "Giraffe-like creatures" , "Ok, Pa is wrong about the giraffe-type animals" , "Animals similar to the giraffe but with shorter necks" , "African animals related to the giraffe" , "Relatives of the giraffe" .)

I've seen this clue in The Telegraph.

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