Echinodermata
Echinodermata means "spiny skinned", so obviously the animals in this phylum have spiny skin and are quite rough. They have radial symmetry, which means that you can basically split them . When a part gets broken off of an Echinoderm's body, it just regrows it which is called regeneration. Also, all Echinoderms reproduce sexually. Common Echinoderms are starfish, brittle stars, sand dollars, sea urchins, and sea cucumbers. All Echinoderms live on the ocean floor, and they use little suction cups called tube feet, to move around. Echinoderms live on coral, rocks, the bottom of the ocean, and on the beach. Echinoderms breathe through their skin and their tube feet.
Echinoderms normally eat mollusks, and they have a very strange way of eating them. First, they turn their stomachs inside out and shove it out of their mouths. Next, they open up the mollusk's shell to get to the soft body. They then release digestive juice onto the mollusk and eat it like jelly. Lastly, they turn their stomachs back the right way and put it back inside of them. So, Echinoderms are strange, somewhat complex animals, but they are very cool too. -hr
Echinoderms normally eat mollusks, and they have a very strange way of eating them. First, they turn their stomachs inside out and shove it out of their mouths. Next, they open up the mollusk's shell to get to the soft body. They then release digestive juice onto the mollusk and eat it like jelly. Lastly, they turn their stomachs back the right way and put it back inside of them. So, Echinoderms are strange, somewhat complex animals, but they are very cool too. -hr