also known as the Remora or Suckerfish, is a type of fish belonging to the family Echeneidae. They are a widespread species found in tropical and subtropical waters around the world, often seen attached to the bodies of larger marine animals such as sharks, whales, and sea turtles.

The Common Remora has a unique, flattened head with a sucker disc on the top of its head. This disc is used to attach the fish to the host animal, which enables the remora to travel along with the host animal and feed on scraps of food left behind or parasites that cling to the host animal. They have a streamlined body with a dark brown or grey coloration and a white underbelly. They can grow up to 90cm in length, but their typical size is around 30-60cm.

Common Remoras are social animals and often seen in groups, but they also exhibit a solitary lifestyle when they detach from the host animal. They are known to be opportunistic feeders and will consume a wide range of prey, including small fish, squid, and crustaceans. They are also known to follow boats in search of discarded food and have been seen swimming near the surface of the water.

One of the most interesting aspects of the Common Remora is its symbiotic relationship with larger marine animals. They are able to attach themselves to their host animal through their sucker disc, which is created by modified fins on the top of their head. This relationship is beneficial for both parties as the remora receives protection and a source of food, while the host animal receives the benefit of having the remora remove parasites from its body.

In addition to their symbiotic relationship with larger marine animals, the Common Remora is also known to play an important role in the fishing industry. They have been used by fishermen in some parts of the world to catch larger fish by attaching a line to the remora and letting it swim around until it attaches to a larger fish. The fishermen then pull the line and catch the larger fish.

Overall, the Common Remora is a fascinating and unique fish that plays an important role in the marine ecosystem. Its ability to attach itself to larger animals has allowed it to thrive in a variety of environments, and its importance in the fishing industry highlights its value to humans as well.