This cute lion cub looks surprised when its tail is tugged from behind by his playful sibling. The cubs, who are a part of a pride of 20 lions, enjoyed playing on the fallen tree trunk for hours in the Ngorongoro Crater, Tanzania.
The moment was captured by South African wildlife photographer Mario Moreno. He said: "It is just one of those great moments of pure lion interaction that as a wildlife photographer you always want to capture.
"I like the fact that the one cub is pulling the other cub’s tail while he is forcing himself in the opposite direction. You can actually sense the tension.