Science
B.C. researchers find evidence of ancient predatory sand worms that were two metres long – Calgary Herald
The marine worms are thought to be related to a modern species nicknamed the ‘sand striker’
The trace fossils showed feather-like structures around the upper parts of the burrows, which the researchers believe would have been caused by the worms dragging their struggling prey under the ocean floor to eat them.
The lower, horizontal part of the burrow.Photo by Yu-Yen Pan /Simon Frazer University
The studys lead author, earth sciences student Yu-Yen Pan, said the giant burrows are much larger than other trace fossils of ocean worms found in the past.
Compared to other trace fossils which…
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