Sea Animals Charm Page

StarFish

There are around 2,000 species of starfish. They are beautiful animals that can be a variety of colours, shapes and sizes, although all resemble a star. In addition to no brain, these sea animals do not have a single drop of blood in their body. Instead, they have a water vascular system. The sea star with five arms is the most commonly spotted one. However, there are species that have 10, 20, or even up to 40 arms! The starfish has an eye spot at the end of each arm; although not much detail can be seen, the eye spot enables the starfish to view movement and differentiate between light and dark. While some appear smooth, they all have spines covering their upper surface and a soft underside. Although starfish live in the sea they are not fish. They do not have gills, scales, or fins like fish do and they move quite differently from fish. While fish propel themselves with their tails, starfish have tiny tube feet to help them move along.

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