Animals one found in Riviera resort (7)

I believe the answer is:

canines

'animals' is the definition.
(canine is a kind of animal)

'one found in riviera resort' is the wordplay.
'one' becomes 'i' (Roman numeral).
'found in' is an insertion indicator.
'riviera resort' becomes 'cannes' (I've seen this before).
'i' put within 'cannes' is 'CANINES'.

(Another definition for canines that I've seen is " Dogs -- teeth".)

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