sentences:  Sea Shepherd Conservation Society is a non-profit, marine wildlife conservation organization that works internationally on numerous campaigns to protect the world's oceans.Their mission is to conserve and protect the world's ecosystems and species; they work to end the destruction of habitat and slaughter of the ocean's wildlife.Unlike many other non-profit environmental groups, Sea Shepherd uses direct-action tactics to expose and challenge illegal activities at sea; they strive to ensure that the ocean can survive for future generations.