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  "path": "/embryo-fossil-is-missing-piece-of-puzzle-thrilling-scientists-with-worlds-oldest-proof-that-mammal-ancestors-laid-eggs/",
  "publishedAt": "2026-04-18T15:35:35.000Z",
  "site": "https://www.goodnewsnetwork.org",
  "tags": [
    "Science",
    "Paleontology",
    "History",
    "Found",
    "Archeology",
    "Dinosaurs",
    "Fossils",
    "Embryo Fossil is Missing Puzzle Piece Thrilling Scientists with Oldest Proof that Mammal Ancestors Laid Eggs",
    "Good News Network"
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  "textContent": "A remarkable new discovery is shedding light on one of the greatest survival stories in Earth’s history—and answering a decades-old scientific mystery. Lystrosaurus, a hardy, plant-eating mammal ancestor, rose to prominence following a mass extinction some 252 million years ago—the most devastating extinction event our planet has ever experienced. While countless species vanished, Lystrosaurus not […]\n\nThe post Embryo Fossil is Missing Puzzle Piece Thrilling Scientists with Oldest Proof that Mammal Ancestors Laid Eggs appeared first on Good News Network.",
  "title": "Embryo Fossil is Missing Puzzle Piece Thrilling Scientists with Oldest Proof that Mammal Ancestors Laid Eggs"
}