Jellyfish: The Ancient Survivors of Earth’s Oceans
Long before dinosaurs roamed the land, before flowering plants spread across continents, and even before the first vertebrates crawled from the seas, jellyfish were already drifting through Earth’s oceans. With a history spanning more than 500 million years, these ancient creatures have survived ice ages, asteroid impacts, and five mass extinctions. Their survival story offers an extraordinary lesson in how simplicity and adaptability can outlast even the most catastrophic events.
Ancient Origins: Life Before Dinosaurs
Fossil evidence suggests jellyfish first appeared at least 500–600 million years ago, making them among the oldest multicellular animals still alive today. This means they predate:
Dinosaurs (230 million years ago)
Sharks (420 million years ago)
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