what began as stomping on pillows quickly evolved into hesitant proto-jumps where one foot would remain on the ground which quickly evolved into full-fledged jumps with both feet leaving terra firma which quickly evolved into competitions with poppi to see who could jump the most number of consecutive jumps in a row ( he always wins and his current record is about 15 jumps before he collapses in laughter on the ground ) which quickly evolved into jumping off piles of found objects.

one can only wonder where this will all lead.