Dugong (Dugong dugong) with a remora (Echeneis naucrates) attached at its rear and juvenile golden trevallies (Gnathanodon speciosus) swimming in front. The dugong is a herbivorous marine mammal found in shallow, tropical waters throughout the Indo-Pacific region. It can grow to three metres in length and 400 kilograms in weight. Remoras have a symbiotic relationship with large sea animals. They use a sucking disk on the top of their heads to attach to their host. They clean the host's skin of parasites and the host's presence protects the remoras from predators. The golden trevallies swim in front of harmless sea animals to be pushed along by the animal's propulsion. Photographed in the Red Sea, Egypt.
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