Palaeoniscus is surely an historical ray-finned fish within the Early Permian time period, somewhere around 290 million many years in the past. Known for its robust ganoid scales and streamlined human body, it signifies early actinopterygian evolution, the ancestor of Most recent fish. Platy fish are very similar to swordtails https://bookmarkoffire.com/story18520665/a-secret-weapon-for-albino-stingray-fish