Lionfish on a reef
Lionfish (Pterois volitans) hunting smaller fish on a coral reef. The lionfish is a predator, often hunting in groups. It uses its widespread fins to force prey, mostly smaller fish, into a crevice in coral or rocks, before sucking it into its mouth with a huge gulp. The spines in the fins contain a potent toxin, which deter predators and can deliver a very painful sting. The lionfish inhabits reefs in the tropical Indo-Pacific region, and in recent years has been sighted in the Caribbean, probably due to escapees from aquaria. It can reach about 38 centimetres in length. Photographed in the Egyptian Red Sea.
© GEORGETTE DOUWMA/SCIENCE PHOTO LIBRARY
Dugong, remora and golden trevallies
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.
© Alexis Rosenfeld/Science Photo Library
United Arab Emirates, Dubai
United Arab Emirates, Dubai. The Burj Al Arab Hotel literally, Tower of the Arabs. At 321 metres (1, 053 ft), it is the tallest building used exclusively as a hotel. It is an iconic structure, designed to symbolize Dubai's urban transformation and
© Mark Hannaford
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