God designed the sponge with the ability to draw water into its body through tiny holes. It then filters the water for food and oxygen before pushing the water out again. Sponges pump remarkable amounts of water. Many sponges produce toxic chemicals that keep predators from eating them.
CLASS: Three classes: Hexactinellida (glass sponges); Calcarea; and Demospongiae
ORDER: Varies depending on class
FAMILY: Varies depending on class
GENUS/SPECIES: More than 5,000 species
Size: Varies greatly
Habitat: Coral reefs, rock reefs, and sunken ships in the western Pacific Ocean