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AUSTRALIA – One tree isn’t big enough for two koalas, apparently.

A video posted to YouTube shows two adorable koalas brawling in the limbs of a tree. It ends with one Koala sitting at the base of the tree whining about apparently losing the fight.

According to the video’s description, it isn’t uncommon for the marsupials to become aggressive during mating season. The woman who posted the video writes that she’s used to the koalas becoming aggressive during mating season.

“Mating and territory fighting is a regular occurrence during this time of season, and their sounds are terrifying!” wrote Alicia Alexander. “I felt so sorry for this poor bubba, it was heart breaking to watch and so hard to not to go comfort it, I try not to interfere where possible.”