{
  "@context": "https://schema.org",
  "@type": "Taxon",
  "slug": "jellyfish",
  "name": "Jellyfish",
  "scientificName": "Medusozoa",
  "category": "Invertebrate",
  "summary": "Jellyfish are gelatinous marine animals that have drifted through the oceans for over 500 million years, longer than the dinosaurs. They have no brain, heart, or bones, are about 95% water, and capture prey using stinging tentacles. Sizes range from a few millimeters to the lion's mane jellyfish with tentacles over 30 m (100 ft) long, and the box jellyfish is among the most venomous animals on Earth.",
  "conservationStatus": "Least Concern",
  "taxonomy": {
    "kingdom": "Animalia",
    "phylum": "Cnidaria",
    "class": "Scyphozoa",
    "order": null,
    "family": null,
    "genus": null
  },
  "stats": {
    "weightKg": 2,
    "lengthM": 0.4,
    "topSpeedKmh": 8,
    "lifespanYears": 1
  },
  "facts": [
    {
      "label": "Scientific name",
      "value": "Medusozoa (subphylum)"
    },
    {
      "label": "Diet",
      "value": "Carnivore (plankton and small fish)"
    },
    {
      "label": "Habitat",
      "value": "Oceans worldwide, surface to deep sea"
    },
    {
      "label": "Lifespan",
      "value": "A few months to a few years"
    },
    {
      "label": "Composition",
      "value": "About 95% water"
    },
    {
      "label": "Top speed",
      "value": "Slow drifters; weak swimmers"
    },
    {
      "label": "Conservation status",
      "value": "Varies by species (most not assessed)"
    }
  ],
  "range": {
    "nativeRange": "Every ocean on Earth, from warm surface waters to the freezing deep.",
    "continents": [
      "Oceans"
    ]
  },
  "sources": [
    {
      "citation": "IUCN Red List — Medusozoa.",
      "url": "https://www.iucnredlist.org/search?query=Medusozoa&searchType=species"
    },
    {
      "citation": "Wikipedia — Jellyfish.",
      "url": "https://en.wikipedia.org/wiki/Medusozoa"
    }
  ],
  "lastReviewed": "2026-07-16",
  "canonicalUrl": "https://globalanimalguide.org/animals/jellyfish/",
  "license": {
    "name": "CC BY-NC 4.0",
    "url": "https://creativecommons.org/licenses/by-nc/4.0/",
    "attribution": "Global Animal Guide — https://globalanimalguide.org/animals/jellyfish/",
    "note": "Free to reuse for non-commercial purposes with attribution and a link back to the canonical page."
  }
}