Vernix caseosa is a protective substance that covers the surface of the skin of the fetus during the sixth and seventh month. In Latin, what does caseosa mean?
Annelids are found worldwide in all types of habitats, especially oceanic waters, fresh waters, and damp soils. Most polychaetes live in the ocean, where they either float, burrow, wander on the bottom, or live in tubes they construct; their colours range from brilliant to dull, and some species can produce light. The feather duster (Manayunkia speciosa) inhabits the Great Lakes and some rivers of the United States.
There are seven species of sea turtlesâthe Kemp's ridley, olive ridley, loggerhead, hawksbill, flatback, green, and leatherbackâ and they live in most ocean waters around the world. Some of these ancient reptiles are homebodies, hanging out in shallow coastal waters their whole lives.