Hitchhiking fish, also known as remoras (6 letters), are a type of fish that attach themselves to larger marine animals such as sharks, whales, and turtles. They use their suction-cup like fins to latch onto the skin of the larger animal and feed off of the scraps of food that the larger animal leaves behind. Remoras are also known for their ability to reduce drag on the larger animal they are attached to, making it easier for them to swim.