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Rare 'prehistoric' ray captured during student expedition: 'We're starting to see the animals on a more regular basis'The sawfish is a type of ray closely related to sharks ... they help move ocean-floor sediment, which unearths organisms that other marine life can feed on. The knock-on effects of their absence ...
The research, published in the Proceedings of the National Academy of Sciences, focuses on a widespread species of foraminifera—microscopic marine organisms that have existed for millions of ...
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