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40M-year-old glass sponge reefs found alive off B.C. after thought extinct

Times of india·7 Oct 2026
40M-year-old glass sponge reefs found alive off B.C. after thought extinct

In 1987, Canadian scientists discovered ancient glass sponge reefs alive in British Columbia’s Hecate Strait, overturning the belief that these reef-building animals had vanished 40 million years…

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