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.
The deep sea anglerfish is one of the most bizarre-looking fish in the sea. There are more than 200 species of anglerfish, most of which live in the dark depths of the Atlantic and Antarctic oceans. They are dark grey to dark brown in color, have huge heads and enormous crescent-shaped mouths filled with sharp, translucent teeth.