Phylum Annelida
Phylum: Annelida
Scientific Name: Polychaeta
Common Name: Sea Worms
Description: Sea worms are are a class of annelid worms that mainly live in marine ecosystems. These animals have three body segments: head, trunk, and tail. Each body segment has a pair of wierd little feet called parapodia which have tiny little brush like bristles called chaetae, which are made of chitin. These invertebrates have lots of vibrant colors.
3 interesting facts:
1.Polyclad flatworms use vibrant colors to deter predators
2. A parasitic tapeworm as long as an airplane was once found living inside a sperm whale's gut.
3. Bristle worms are one of the largest and most ancient groups with 8,000 species. Their fossil record dates back to more than 500 million years ago.