Table of Contents
Why are starfish interesting?
Starfish (or sea stars) are beautiful marine animals found in a variety of colors, shapes, and sizes. The amazing sea creatures—part of a group of animals known as echinoderms—travel using their tube feet. They can regenerate lost limbs and swallow large prey using their unusual stomachs.
Does a starfish have eyes?
Lacking a brain, blood and even a central nervous system, it might come as a surprise to you that starfish have eyes. Just to further add to their unusual anatomy, their eyes are on the end of their arms.
What is unique about Sea Star?
They do not have gills, scales, or fins like fish do. Sea stars also move quite differently from fish. While fish propel themselves with their tails, sea stars have tiny tube feet to help them move along. Because they are not classified as fish, scientists prefer to call starfish “sea stars.”
What are the habits of starfish?
Anatomy of sea stars. Note that starfish has no brain per se.
What are the behaviors of starfish?
Starfish Behavior. They have a complex central nervous system but they don’t have a real brain. As a result there is no though process for the Starfish. Their life involves finding food and avoiding predators . All of their activities are due to programming and not decision making.
What are the external features of starfish?
The mouth , on the underside of the body, has five teeth; an anus is lacking; and the tube feet serve mainly as sense organs for detecting light and odour. The animal feeds by extending one or more arms into the water or over the mud, the other arms serving as anchors.
Is a starfish a fish or a mammal?
Starfish aren’t fish – finned, tailed animals with backbones – they are echinoderms, which are marine invertebrates. So scientists prefer to call these animals sea stars.