Where are Amazon river dolphins found?
The Amazon river dolphin, also known as the pink river dolphin or boto, lives only in freshwater. It is found throughout much of the Amazon and Orinoco river basins in Bolivia, Brazil, Colombia, Ecuador, Guyana, Peru, and Venezuela.
When was the Amazon River dolphin discovered?
Scientists in Brazil have discovered the first new river dolphin species since the end of World War One. Named after the Araguaia river where it was found, the species is only the fifth known of its kind in the world.
How many pink Amazon River dolphins are left?
Given their extensive range and habitat, yet spotty distribution between hotspot locations, it’s very hard to put a figure on the pink dolphin population. It is estimated that there are well over ten thousand animals.
Why do pink dolphins live in the Amazon river?
Every spring when the rains fall in South America, the Amazon River and its tributaries begin to spill their banks. Eventually, thousands of square miles of rainforest are flooded, creating a vast, tree-canopied sea. Into this seasonal sea, which remains for half the year, swims the Amazon river dolphin, or boto.
Where was the first dolphin found?
Their research suggests that true dolphins existed 3-8 million years earlier than was previously believed. A delphinid fossil was discovered near the Oshirarika River in Hokkaido, Japan and reported in Japanese literature in 1977. It was originally named Stenella kabatensis.
What does a river dolphin eat?
Amazon river dolphins are known to eat more than 40 different species of freshwater fish and they also eat freshwater crustaceans. Spinner dolphins eat fish, jellyfish and krill. Dusky dolphins eat shrimp, squid and various fish, including tiny anchovies.
Where do Ganges river dolphins live?
Ganges river dolphins once lived in the Ganges-Brahmaputra-Meghna and Karnaphuli-Sangu river systems of Nepal, India, and Bangladesh. But the species is extinct from most of its early distribution ranges. The Ganges river dolphin can only live in freshwater and is essentially blind.
¿Dónde viven los delfines rosados?
¿Dónde viven los delfines rosados? El delfín rosado es un mamífero acuático, cetáceo odontoceto, perteneciente a la familia Iniidae, que vive en los ríos. Estos delfines rosados son los delfines de río más grandes que existen. El peso de los adultos puede ser en ocasiones de hasta 185 kg, con una longitud de hasta 2 metros y medio.
¿Qué es el delfín rosado?
El delfín rosado tiene diferentes nombres dependiendo de la región. Hasta 2007 el Delfín Rosado estaba considerado como una especie Vulnerable, en el transcurso de los años la UICN no ha conseguido datos suficientes para determinar el estado actual del animal.
¿Cómo viven los delfines?
Aunque parezca obvio, todos los delfines viven en cuerpos de agua, sin embargo, en las próximas líneas descubrirás específicamente en cuáles regiones y cuerpos de agua podemos encontrarlos. Te invitamos a que continúes leyendo y descubras dónde viven los delfines.
¿Quién es el depredador del delfín rosado?
El principal depredador del Delfín Rosado es el hombre, los cazadores furtivos suelen adentraren en la selva amarinas para conseguir su grasa el comercio ilegal. Se puede saber que el delfín fue cazado de forma ilegal cuando se encuentra su cuerpo en las orillas de los ríos con marcas de redes de pesca y sin grasa corporal.