Paraprotopithecus

Paraprotopithecus is an extinct species of hominid ape found on what is now the coastlines of East Africa. The fossilized teeth suggests that it was omnivorous like modern humans and chimpanzees, the closest living relative of Paraprotopithecus, and, based on fossilized fish in some fossil impressions of Paraprotopithecus and based on the body designs, these apes likely caught fish in a manner similar to fish-eating wading birds, but by using their hands rather than jaws, more akined to fish-eating bears. These apes were most likely bipedal upright walkers, much like their cousins such as Australopithecus, due to having legs (slightly) longer than their arms and their foot bones supporting that theory. The Paraprotopithecus  lived in coastal forests and shorelines around 7-6 million years ago, they were forced to live in the seas by some natural disasters, eventually they evolved into newer species that became better suited to life in the ocean, such as the modern mermaid (Aquatopithecus oceanii).