 Jellyfish propel themselves through the water by contracting their muscles to collapse their umbrella-shaped body, and then relaxing.
Jellyfish propel themselves through the water by contracting their muscles to collapse their umbrella-shaped body, and then relaxing.from Top Tech News- News18.com https://ift.tt/31kItI7
 Jellyfish propel themselves through the water by contracting their muscles to collapse their umbrella-shaped body, and then relaxing.
Jellyfish propel themselves through the water by contracting their muscles to collapse their umbrella-shaped body, and then relaxing.