The Octonauts characters specialize in exploring the vast underwater where they go on adventures and save creatures. In an episode on The Octonauts and the Harbour Seal, the crew came about a struggling character named Nora.
Nora is a remora fish whom Peso the Penguin and Harry the Harbor Seal saved when she hurt her sucker. The poor fish was accidentally attached to a sailfish and needed help. They helped her set free from being connected to the bigger fish. In real life, Nora does exist and is called a Sharksucker!
Remora fishes, also known as Sharksucker or Suckerfish, are part of the family Echeneidae and consist of any of the eight marine fishes under that family. Remoras are thin, elongated, dark fishes found in tropical and subtropical oceans and seas. They typically range from almost one to three feet in length, but some species, like the slender suckerfish, are the longest among them. Remoras could also grow up to three feet and six inches in size!
These fishes got their Sharksucker name because they had a special relationship with sharks! According to Britannica, they attach themselves and ride about on sharks, other marine animals larger than them, or even sailing ships. They can get free rides from other animals as they adhere by using their flat oval sucking disks that are on top of their heads. These sucking disks originated from the tapered portion of their dorsal fin, which contains various paired crosswise plates. However, Remoras are sometimes mistaken with pilot fishes. While both are seen with sharks, pilot fishes do not attach themselves to sharks but only swim beside them.
From Octonauts, Nora was seen happily traveling while being attached to a shark. These sharks are not bothered by the remoras as these creatures feed on their leavings. Sometimes, remoras act as cleaners for the hosts by eating the external parasites of their transporters. That is how sharks and Sharksuckers live in harmony or the animal world; it is called a symbiotic relationship.
In this relationship, both of them benefit as sharks protect remoras from possible predators. It was also postulated that sharks somehow know that Remoras are beneficial to them as they had been observed slowing down to allow the Remoras to attach to them.
However, not all sharks happily welcome Remoras. It was documented that some species like sandbars and lemon sharks act aggressively when Remoras come close to them. On some occasions, these large marine animals will also consume these beneficial Remoras. However, worry not as these instances only happen rarely or not at all!
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