Mama Shark, Papa Shark, the pet jellyfish Sparky, and Finny’s best friends Myrtle the Turtle, Chloe the Crab, and Sammy the Seahorse are all happy to be along for the ride.

Florida Keys Travel, for the second time recently, has shared footage showing a tiger shark chasing a turtle practically onto the sand. The latest Instagram post cautioned: “Think again before ...