Leaping up and down in the air, raising its claws, cats are like participating in a deadly battle.
But it's not that they're competing fiercely for prey or territory, they're just playing around with each other.
The martial arts battle of the cat named Muffi and Tiger was recorded by owner Mats Hamnas in his garden in Helsingborg, Sweden.
The computer engineer said: " They looked like they wanted to bite each other. I was surprised to find them so fierce. In fact, Muffi and Tiger are very close. But when you look at this image, it feels great. like that is a warring ninja pair . "
Mats, 62, also said his two 4-5 year old pets would love to accompany him to the forest near his home. " They are like dogs always with their feet and very mischievous. After struggling hard, they are hugging each other in the corner and relaxing ."
