Sponges
The simplest animals in the ocean!
A sponge is an animal that lives attached to one place, like a rock or coral reef. It doesn't have muscles or move around.
What makes them this type?
- Attached to one spot
- No brain or nervous system
- Filter feeds tiny food particles
- Skeleton made of hard material
Examples
Clown Sponge Bright orange color, common in shallow waters
Dead Man's Finger Long, finger-like shape, often yellow or brown
Vase Sponge Tall and vase-shaped, found on coral reefs
Motion Notes (for Animation & Drawing)
- No muscles to move - just water currents
- Squeeze pores to filter food particles
- Sometimes wave gently in the current
Learn More
Soft, porous body
Many tiny holes for water flow
Special cells called choanocytes
Fun Facts
- Sponges are actually colonies of many individual animals
- They're over 580 million years old - even older than humans!
- Some sponges can grow up to 6 feet long!