OceanFact,
Evolution of river dolphins. #OceanFactInstagram Cetacea are marine mammals including whales, sperm whales, killer whales...
Evolution of river dolphins. #OceanFactInstagram Cetacea are marine mammals including whales, sperm whales, killer whales...
#Cetacean : The Evolution of #Dolphin
“External similarities among the three extant river dolphins and Pontoporia. The painting shows shared characteristics…