The boxing kangaroo didn’t get its name for fictional reasons.
Although the Australian animal is sometimes regarded as being cute and fluffy, it can transform into a savage beast when a female kangaroo is involved.
To determine who mates with a female, and becomes alpha male, kangaroos engage in fighting which looks very similar to boxing.
They stand on their hind legs and attempt to push their opponent off balance by jabbing him or locking forearms, or kicking each other using their tail to support their weight.
However they might not be the smartest animal.
This one kangaroo appears to be a little confused and tries to fight its own reflection.
Check it out here.
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