Pineapple fish: A rare fish species with a bizarre appearance resembling a pineapple.
Vietnam.vn EN
26/12/2025 12:28:00
Discover the pineapplefish, a deep-sea creature with bioluminescence and a hard, spiny shell, a 'living fossil' of the deep ocean.
Considered one of the rarest fish in the world , the pineapple fish is rarely recorded, mainly living in the deep waters off the southern coast of Australia, making each sighting highly noteworthy. Photo: Pinterest.
Shaped like a pineapple with a layer of hard spines. The fish's body is covered with sharp, spiny bony plates, giving it a pineapple-like appearance that is both bizarre and helps protect it from predators. Photo: Pinterest.
They live at great depths and in dark environments. This species of fish is often found at depths of 200 to over 1,000 meters, where light is almost nonexistent and temperatures are very low. Photo: Pinterest.
Possessing a unique bioluminescent ability, each of these fish has a bioluminescent organ under its eye, powered by symbiotic bacteria that produce a pale green light, enabling them to see and communicate in the dark marine environment. Photo: Pinterest.
Its diet consists of small invertebrates. Cleidopus gloriamaris's diet mainly consists of crustaceans, sea worms, and small benthic organisms, which it detects using bioluminescence and a keen sense of smell. Photo: Pinterest.
They move slowly and are not very active. Due to the hard shell covering their bodies, pineapplefish swim quite slowly, mostly drifting quietly near the seabed to avoid detection. Photo: Pinterest.
Considered a "living fossil" of the deep ocean, the pineapplefish's ancient and largely unchanged form makes it a living testament to the long evolutionary process of deep-sea fish. Photo: Pinterest.
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