Long Spine Porcupine Fish

Created on Day 5


The unique features of this fish give it protection against predators. When threatened, the long-spine porcupinefish will fill its body with air or water, which makes its body swell like a balloon. This makes it too large to fit into the predator’s mouth. Also when “inflated,” the spines all over its body are fully extended, making it even less of a desirable meal to the predator. Such a defense mechanism requires a flexible stomach, vertebrae, and sides. This structure could not have happened by chance, random processes, but was designed by the Creator.


  • The long-spine porcupinefish has dark patches on its sides and back.
  • It has long spines that protrude from all over its body, except for the fins and face.
  • When not threatened, this fish’s spines will lie flat against its body.

Fun Facts

  • Common names for this fish include balloonfish, balloon porcupinefish, blotched porcupinefish, brown porcupinefish, freckled porcupinefish, hedgehog fish, and spiny puffer.
  • The long-spine porcupinefish has an elastic stomach, flexible skeletal structure, and stretchy skin, all which allow it to inflate like a balloon.
  • The teeth of both the upper and lower jaws of this fish are fused, forming a solid, heavy beak. This beak makes cracking the shells of snails, sea urchins, and hermit crabs easy.

CLASS: Actinopterygii (ray-finned fishes)

ORDER: Tetraodontiformes (cowfishes, filefishes, leatherjackets,

puffers, triggerfishes, and trunkfishes)

FAMILY: Diodontidae (burrfishes and porcupinefishes)

GENUS/SPECIES: Diodon holocanthus

Size: Up to 24 in (60 cm)

Diet: Mollusks, crabs, and sea urchins

Habitat: Shallow areas in tropical waters of the world