Starfish, also known as sea stars, are marine invertebrates that live in oceans around the world. They have between 5-44 arms that radiate from their central disc in a symmetrical pattern and come in a variety of colors. Starfish move slowly by crawling and climbing rather than swimming. They feed on mollusks like oysters and mussels by wrapping their arms around the shell and pulling until it opens. Despite their name, starfish are not fish - they have no brain, blood or internal skeleton.
2. Contents
What are starfish?
What do they look like?
How do they move?
Where do they live?
What do they eat?
Cool facts and pictures
3. What are Starfish?
• Starfish or sea stars
live in the sea
• They have 5 or
sometimes more
arms
• They are perfectly
symmetical
4. What do they look like?
Starfish can be different types of colors like red, orange, pink or yellow some
can also be seen in grey,blue,green or purple.
Starfish are between eight to 50 centimeters long.
Some of them usually have 5 arms although some have 44 arms, some grow
back their arms that they lost.
Many of them have skinny bodies and their mouth under their bodies.
There skin are rough and leathery some of them are spiky.
• There are many kinds of starfish. Some of them are the goosefoot, burrowing
starfish and cushion star.
• Most starfish are less than eight inches across, but a few kinds can be as big as
a small car!
5. How do they move?
Starfish cannot swim.
They crawl and climb.
7. What do they eat?
Sea stars love to eat
oysters.
They just wrap their
arms around the
oyster shell and,
using the suction
power of their feet,
pull at the shell until
it opens.
8. Cool facts and pictures
Did you know????
Sea stars have no
brains and no blood.
Their nervous system
is spread through
their arms and their
“blood” is actually
filtered sea water.
