Interesting Facts

1. Living sponges can actually change their shape! To do this, cells in its body can move around, as well change from one type of cell to another.

2. Sponges have no nervous, digestive, or circulatory systems. Instead, sponges rely on the flow of water through their pores to distribute food particles and waste resources.

3. Sponges can also be found in freshwater. One examples would be the Spongilla. This sponge is green in color, and can be found in lakes and streams.

4. During the Middle Ages, sponges were use as mops and drinking vessels for soldiers as according to the Brittanica.

5. Not only are they used for shelter for small fishes and crustaceans, they are used as tools. A 1997 report states the bottlenose dolphin of Shark Bay have used sponges as tools. They hold the sponge in their rostrum or snout, and looks for food by digging on the sandy, ocean floor.

6. At times, when sponges are growing in harsh places where 's there limited amount of food, they adapt to a carnivorous diet. One examples is the genus  Chondrocladia, a carnivorous demosponge that scientists have found in the dark, sea floors. A sponge called the Harp Sponge catches prey using hooks and thorns to snare their prey.