A pair of buoyant fox cubs escape their mother's watchful eye to play fight during a morning family stroll.
The tiny female fox squares up to her slightly smaller brother before the duo open the mouths and exchange several 'playful' blows.
They tussled in the woods while their mother was not watching and neither cub backed down from their sibling's advances.
Wildlife photographer Helena Kuchynková, 28, captured the fascinating moment while walking in the Zdar Highlands in the Czech Republic.
© Helena Kuchynková/Solent News & Photo Agency
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