A sucker-like structure on top of the head of a remora allows it to attach to sharks by creating a partial vacuum.

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"The remora is a relative of the perch which habitually attaches itself to the belly of a shark using a specialized, corrugated, suckerlike structure on top of its head; this in fact develops from its dorsal fin. The remora is thus carried like a hitchhiker as the shark swims through the sea." (Shuker 2001:163)

The Hidden Powers of Animals: Uncovering the Secrets of NatureMarshall Editions Ltd.March 4, 2021
Dr. Karl P. N. Shuker

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Sharksuckers Or RemorasEcheneidaeFamily

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