Before revision:  We investigated jellyfish locomotion by conducting in silico comparative studies and explored swimming performance in different fluids (e.g., changing viscosities) at different fluid scales (e.g., Reynolds Number), bell contraction frequencies,  contraction phase kinematics , as well as bell morphologies and contraction amplitude .
After revision:  We investigated jellyfish locomotion by conducting in silico comparative studies and explored swimming performance in different fluids (e.g., changing viscosities) at different fluid scales (e.g., Reynolds Number), bell contraction frequencies, contraction phase kinematics for a jellyfish with a fineness ratio of 1 (ratio of bell height to bell diameter) .