Remora

The remoras or suckerfish are ray-finned, which can grow to 12 to 43-inch lengths depending on the particular species. Their first dorsal fins are modified, and they function as suction-like organs, which is quite handy when hunting their prey. They can increase the suction power by sliding backward. When they swim forward, they release the suction hold.
Some cultures use the remoras as lures to catch turtles. The practice happens mostly in eastern Africa countries like Mozambique and Zanzibar. They tie a rope on the remora’s tail, and when a turtle is in sight, they toss the fish in its direction. The remora then clutches the turtle, and both are hauled back into the boat.

