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Animals are a major group of multicellular, eukaryotic organisms of the kingdom Animalia or Metazoa. Their body plan eventually becomes fixed as they develop, although some undergo a process of metamorphosis later on in their life. Most animals are motile, meaning they can move spontaneously and independently. All animals are also heterotrophs, meaning they must ingest other organisms for sustenance...

Aircraft are vehicles which are able to fly by being supported by the air, or in general, the atmosphere of a planet. An aircraft counters the force of gravity by using either static lift or by using the dynamic lift of an airfoil, or in a few cases the downward thrust from jet engines. Although rockets and missiles also travel through the atmosphere, most are not considered aircraft because they use rocket thrust instead of aerodynamics as the primary means of lift...

A yacht is a recreational boat. The term originated from the Dutch Jacht meaning "hunt". It was originally defined as a light, fast sailing vessel used by the Dutch navy to pursue pirates and other transgressors around and into the shallow waters of the Low Countries. After its selection by Charles II of England as the vessel of choice to return to Britain from Holland for his restoration, it came to be used to convey important persons...

The bikini is typically a women's swimsuit, either a one-piece or a two-piece. For the two-piece, one part of the attire is covering the breasts; the other the groin and, optionally, part or all of the buttocks, leaving an uncovered area between the two. The bikini is often worn in hot weather, while swimming or sunning. A bikini is also often worn as an undergarment to the wetsuit for waterskiing, scuba diving, surfing, and wakeboarding...