{
  "@context": "https://schema.org",
  "@type": "TechArticle",
  "@id": "https://anchorfact.org/kb/kb-2026-00496",
  "headline": "Ocean Life",
  "description": "Oceans cover 71% of Earth's surface and contain 97% of its water. Average depth: 3,688m. Zones: sunlight (0-200m, photosynthesis), twilight (200-1,000m), midnight (1,000-4,000m), abyssal, hadal (trenches, >6,000m). Deep ocean: largest ecosystem on Earth, largely unexplored. Marine life ranges from microscopic plankton to blue whales (largest animal ever, 30m, 200 tons).",
  "dateCreated": "2026-05-22T14:59:47.847Z",
  "dateModified": "2026-05-22T14:59:47.847Z",
  "author": {
    "@type": "Organization",
    "name": "AnchorFact"
  },
  "publisher": {
    "@type": "Organization",
    "name": "AnchorFact",
    "url": "https://anchorfact.org"
  },
  "license": "https://creativecommons.org/licenses/by/4.0/",
  "anchorfact:confidence": "high",
  "anchorfact:generationMethod": "ai_assisted",
  "citation": []
}