Artificial  Jellyfish :- A  Saviour for heart Patients 

Scientists unveiled on July 22, 2012 . on artificial jellyfish created using cells from rat hearts and a seer Polymer film.the new invention could one day save patients with heart diseases.the  exploit marks Significant advance in so- called biomimicry in which a natural phenomenon inspires innovations in the  Laboratory. 'the interest in jellyfish originats from its. remarkable swimming ability , which comes from Muscles that open it's bell like body and their contracts it, this ejecting water and propelliry the creature forward. It is an extremely simple and energy - efficient procedure. offering insights for scientists trying to make small, reliable heart pumps for the future. 

source -  The Hindu