page_title: Amazon river dolphin
section_title: In captivity
hierarchical_section_title: Amazon river dolphin / Interactions with humans / In captivity
caption_attribution_description: Español: El delfín del Amazonas o del Orinoco, Inia geoffrensis (también llamado delfín rosado, tonina, boto o bufeo) es el delfín de agua dulce más grande que existe y vive en las aguas pantanosas y rápidas del Orinoco, en sus ambarinos afluentes y en las aguas claras de los ríos Negro y Ventuari. Se las puede encontrar en toda la cuenca del Orinoco y Amazonas, llegando a Colombia, Brasil, Guyana, Bolivia y Perú. La variedad que se encuentra en nuestro Orinoco se denomina Inia geofrensis humboldtianay se considera una especie en estado vulnerable de conservación. El Acuario de Valencia es el unico en el mundo que entrena Toninas actualmente cuenta con dos toninas Zeus y Dalila.
context_page_description: The Amazon river dolphin, also known as the boto, bufeo or pink river dolphin, is a species of toothed whale classified in the family Iniidae. Three subspecies are currently recognized: I. g. geoffrensis, I. g. boliviensis and I. g. humboldtiana while position of Araguaian river dolphin within the clade is still unclear. The three subspecies are distributed in the Amazon basin, the upper Madeira River in Bolivia, and the Orinoco basin, respectively.
  The Amazon river dolphin is the largest species of river dolphin, with adult males reaching 185 kilograms in weight, and 2.5 metres in length. Adults acquire a pink color, more prominent in males, giving it its nickname "pink river dolphin". Sexual dimorphism is very evident, with males measuring 16% longer and weighing 55% more than females. Like other toothed whales, they have a melon, an organ that is used for bio sonar. The dorsal fin, although short in height, is regarded as long, and the pectoral fins are also large. The fin size, unfused vertebrae, and its relative size allow for improved manoeuvrability when navigating flooded forests and capturing prey.
context_section_description: The Amazon river dolphin has historically been kept in dolphinariums. Today, only three exist in captivity: one in Acuario de Valencia in Venezuela, one in Zoologico de Guistochoca in Peru, and one in Duisburg Zoo in Germany. Several hundred were captured between the 1950s and 1970s, and were distributed in dolphinariums throughout the US, Europe, and Japan. Around 100 went to US dolphinariums, and of that, only 20 survived; the last died at the Pittsburgh Zoo in 2002.
caption: A trained Amazon river dolphin at the Acuario de Valencia
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