Two boisterous jackals up on their hind legs are "fighting" with each other. Long legs and curved canine teeth are their vital assets in hunting small animals. Now they use them to grapple with each other attempting to take superiority. 

Wildlife photographer Steve Roos captured these tense moments at the Zimanga game reserve in the South African province of KwaZulu-Natal. Roos, aged 71, covered himself in a hide less than 30 meters from the fighting wild animals.

(All photos via VCG)

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