Certain marine animals such as cnidarians (sea anemones, corals and “jellyfish") possess extreme regenerative capacities as well as a strong resistance to drastic environmental variations. Interestingly, these biological features are accompanied by an extended live span in a large set of these marine animals. In our lab, we take advantage of these intriguing biological features of cnidarians to decipher their underlying cellular, molecular, biochemical and genetic mechanisms.