1. A chordate marine animal of the subphylum a tunicate.

2. Here's a tunicate, also called a sea squirt, which is in Chordata, anda crab, in Arthropoda.

3. Soon, animals that need to attach themselves to a hard surface, like this 11)tunicate and these 12)featherduster worms, make the wreck their home.

4. A chordate marine animal of the subphylum Urochordata; a tunicate.

5. Komodo National Park in Indonesia showcases a carnival of marine life, including this green-and-black nudibranch, seen here devouring a tunicate.