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Cave diving is a type of technical diving in which specialized SCUBA equipment is used to enable the exploration of natural or artificial caves which are at least partially filled with water. In the UK it is an extension of the more common sport of caving, and in the US an extension of the more common sport of SCUBA diving. It is much more rarely practiced due to the skills and equipment required, and because of the high potential risks...

The featherless Humboldt penguin Belle is put on a wet suit to help it rehabilitate the growth of feathers in Singapore Bird Park. Singapore Bird Park's avian keepers put a wet suit onto the featherless Humboldt penguin Belle to help it rehabilitate the growth of feathers. Belle started suffering from feathers moulting since last year, resulting in her being ostracized by her fellow penguins, and losing her ability to swim as well as the ability to keep warm...

A cherry blossom is the flower of any of several trees of genus prunus, particularly the Japanese Cherry, Prunus serrulata, which is sometimes called sakura after the Japanese (桜 or 櫻; さくら). Many of the varieties that have been cultivated for ornamental use do not produce fruit. Edible cherries generally come from cultivars of the related species Prunus avium and Prunus cerasus...

World is a common name for the whole of human civilization, specifically human experience, history, or the human condition in general, worldwide, i.e. anywhere on Earth. In a philosophical context it may refer to: (1) the whole of the physical Universe, or (2) an ontological world (world disclosure). In a theological context, world usually refers to the material or the profane sphere, as opposed to the celestial, spiritual, transcendent or sacred...