Arapaima Size Characteristics: Largest Freshwater Fish 3 Meters Long 200 Kilograms Size Bottlenose Dolphins
FreshwaterGiant ArapaimaSize AmazonFish GiantFish
0:08 The arapaima is the largest freshwater fish in the world where they generally grow to be 3 meters long and weigh up to 200 kilograms which for comparison is how big bottlenose dolphins usually get representing a truly giant species among Amazonian wildlife including the carnivorous piranha, pink dolphin and blind electric eels.
Arapaima Evolutionary History: Osteoglossomorpha 187 Million Years Ago Current Form 23 Million Oldest Living Freshwater Fish
EvolutionaryHistory BonyTongues AncientLineage FreshwaterFossil
0:41 The earliest ancestors of the arapaima were the first members of the Osteoglossomorpha super order who appeared about 187 million years ago in the early Jurassic where the name literally means bony tongues indicating that unique adaptation and around 23 million years ago the arapaima assumed the form that it has today making it among the oldest living freshwater fish on the planet.