1. Biology 404L - Porifera
   There about 10,000 species of sponges and 98% of them are marine.
   http: //biology.unm.edu/~bio404/Porifera.html
   
   
2. Echinoderm
   Echinoderm
   http: //academickids.com/encyclopedia/e/ec/echinode...
   
   
3. Porpoise
   Read and learn about Porpoises..
   http: //academickids.com/encyclopedia/p/po/porpoise...
   
   
4. Rays
   Read about stingrays.
   http: //aqua.org/animals/species/rays.html
   
   
5. Seahorse
   Read and learn about Seahorse...
   http: //academickids.com/encyclopedia/h/hi/hippocam...
   
   
6. Sponge
   Sponge
   http: //academickids.com/encyclopedia/s/sp/sponge.h...