This remarkable creature possesses distinct characteristics that set it apart from fish. It showcases several mammalian traits such as having hair, mammary glands, giving birth to live young that develop within a uterus, and nourishing them with milk. Unlike fish, it relies on lungs for respiration rather than gills. Furthermore, its bone structure is distinctively mammalian, differing significantly from that of fish. When examining its fossil history, we can trace its origins back to shore-dwelling mammals that share a relationship with ungulates while exhibiting slight resemblances to marine mammals like dugongs and manatees.