This book has been titled “Fragile” in the realization that the term is ill related to the oceans, as these are usually perceived as vast, immense, and at first sight, indestructible. Powerful sharks, tunas, whales, giant squid, sperm whales, manta rays, and orcas are, contrary to what many may think, fragile, very fragile. They are part of an intricate web of life, to which us fragile humans also belong and to which we must add thousands of magnificent animals, beautiful corals, and fishes that are rapidly disappearing from this universe we call the ocean.