on June 10, 2011

The remora does not have a swim bladder.



The remora does not have a swim bladder. It was created with a sucking disc on the top of its head so that it can “hitch-hike” rides on other animals to get around the ocean. Without this ride providing swift movement of water over its gills, the remora would quickly perish. Clearly this design feature did not evolve over long periods of time.


  • The remora is a drab brown or black color.
  • It is a short and thick fish with a long, flattened head.
  • The body of the remora is smooth, with small, cycloid scales.

Fun Facts

  • The remora attaches itself to fish (including sharks and rays), sea turtles, and aquatic mammals.
  • Some remoras eat parasites that are on the animal, thus benefiting both species.
  • Some fishermen use the remora to capture larger fish and sea turtles. They attach a line to the remora’s tail and then release the remora because the remora will soon attach itself to a host. The fishermen then carefully pull in both the remora and its larger host.

CLASS: Actinopterygii (ray-finned fishes)
ORDER: Perciformes (perch-like fishes)
FAMILY: Echeneididae (remoras and sharksuckers)
GENUS/SPECIES: Remora remora

Size: 1–3 ft (30–90 cm)
Habitat: Worldwide in tropical and warm waters

Aquarium Guide

With fun facts about more than 100 animals, this long-awaited Aquarium Guide includes beautiful pictures and reveals the incredible facts and design features that point to our amazing Creator. This handy size guide is excellent for school field trips and family trips to your favorite aquarium!

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