Due to their unique anatomical shape and lack of scales, many people may not consider seahorses ‘fish' at first, but they are indeed! Possessing swim bladders to remain buoyant in the water and utilizing gills to breathe, these fish also thrive in a strong suit of sturdy armor-like plates. Their tough, bony makeup makes them pretty tough for other fish to digest, illustrating the reason for their lack of many natural predators. Other than crustaceans like crabs who can pluck them up with their sharp pincers, humans are likely one of the more significant threats to the species, historically harvesting the animals faster than they're able to reproduce.