The seizing foods behavior always was found between Hydras or Hydra and bud with foods, the bigger Hydra often swallowed smaller one or buds with foods.

• 个体间及其成体与芽体间常出现争夺食物的现象，当垂唇端部互不相触时，体型较大的个体常常把较小个体或芽体连同食物一起吞食；