2,    adults,    animals,    artiodactyl,    Artiodactyla,    bank,    bathes,    bathing,    culms,    dark,    eat,    eats,    fodder,    format,    hippos,    lakes,    laterally,    mammals,    move,    movement,    moves,    open,    outdoors,    outside,    river,    riverside,    shores,    stalks,    summerly,    summertime,    summery,    sunny,    sunshine,    swimming,    swims,