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Little and Large show...

Despite the size difference the proud mother charges into action...

This plucky mother antelope ignores the golden rule of 'pick on someone your own size' and squares up to a whopping rhinoceros in a bizarre stand-off.

The brave mum refused to back down when the three-tonne beast came a little too close to her newborn calf - and at one point even clashed horns with it.

The protective mother antelope, called Ramina, kept her days-old baby Phoenix behind her at all times as she valiantly charged at the massive rhino, called Njanu, despite it being 15 times heavier.

The unlikely scene was caught on camera by staff at Longleat Safari Park in Wilts.