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Episode 133 - Symbiosis

The Common Descent Podcast

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Sembiosis in Cambrian Fossils

In cambrian fossils from the burgess shale, there was an example of 30 tubes that contained acorn worms and polycet worms all occupying the tubes. There are a fewx les of direct host sembiot relationship in fossils of two cambrian worms species that have been infested by smaller organisms on to their body like barnacles on a whale. They don't know for sure what was going on but this does seem to be a sembiotic shelter relationship between these two worms.

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