Some took a picture of the animal (5)
I believe the answer is:
okapi
'the animal' is the definition.
(African mammal)
'some took a picture' is the wordplay.
'some' indicates the answer is hidden within the clue (some of the parts of the word are used).
'OKAPI' can be found hidden inside 'took a picture'.
'of' is the link.
(Other definitions for okapi that I've seen before include "beast from Africa" , "Giraffe family member" , "Type of giraffe" , "Central Afr. ruminant" , "Hoofed mammal" .)