Two-Year Dig Yields Stunning Kangaroo Fossil From Deep Underground Caves

Pitch-black darkness. Crushing squeezes, muddy passages, icy waterfalls. Bats and spiders. Abseiling over ledges into the unknown. How far would you go for a fossil? On a two-year retrieval mission of nearly 60 hours in an underground cave, we met our limits—and went beyond.

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