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1) Leave your real name when you post an idea.

2) Have a serious attitude for sharing and learning when you post an idea.

3) Do not post photographs and videos.

4) Use Google Search to find out more about the animal before you type in ONE fact (in point form/ in a sentence).

5) Do not worry if you do not see your message posted on this wall as the teacher will need to read it and give her approval before it can appear on the wall.

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Sea urchins are active nocturnally, searching for food at night. By doing so, sea urchins can also avoid predators.

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Sea urchins are small sea animals that range in size from about an inch in a diameter up to 14 inches.  They have shells that are typically covered by spines similar to those of a porcupine.  They also come in a variety of colours such as black to white, red, orange, green, brown, purple, pink, yellow, blue and gray.

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Sea urchins only live in the sea and cannot remain alive in fresh water.

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Despite their frequency in the intertidal zone, in tide pools, sea urchins can be found at many different depths and in any habitats. They can also be found in nearly any ocean temperature. Sea urchins inhabit the polar seas as well as the warm tropics.

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Behavior of the Sea Urchin Sea urchins spend most of the time in their lives looking for food.

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Sea urchins mainly graze on algae and undersea vegetation, such as kelp. They have also been known to feed on sponges, sea stars, mussels, sea cucumbers, carrion, and polychaete worms.

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Sea urchins will eat just about anything that floats by. Its sharp teeth can scrape algae off rocks, and grind up plankton, kelp, periwinkles, and sometimes even barnacles and mussels. Sea urchins are sought out as food by birds, sea stars, cod, lobsters, and foxes.

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Many species of sea urchins are active nocturnally, moving out of shelters at night to graze. This behavior is correlated with the avoidance of visual predators; however, it also increases exposure to nocturnal predators, including lobsters.

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Sea urchins move slowly, crawling with tube feet, and also propel themselves with their spines.

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Sea Urchin's Diet are algae, mussels, small fish, Jellyfish and Barnacles.

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Sea urchins are usually covered with long sharp spines that deter most predators. The spines also tend to break off inside their victim's flesh. Some sea urchins have venomous spines that can inflict serious pain. Some sea urchins also have tiny jaw-like structures on stalks called pedicellariae.

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It is an important omnivorous species feeding on invertebrates but also can control seagrasses by herbivory. It has long been known that this species has a covering behavior, where they reach loose objects on the bottom, move them, and hold them aborally using their tube feet.

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Sea urchins will eat just about anything that floats by. Its sharp teeth can scrape algae off rocks, and grind up plankton, kelp, periwinkles, and sometimes even barnacles and mussels. Sea urchins are sought out as food by birds, sea stars, cod, lobsters, and foxes.

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Sea urchins live only in the ocean and cannot survive in fresh water. They are found from the intertidal to the deep ocean.

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Sea urchins are active nocturnally, moving out of shelters at night to graze.

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Sea urchins live only in the ocean and cannot survive in fresh water. They are found from the intertidal to the deep ocean. The species that we are likely to use in the lab are either from the intertidal or the shallow subtidal.

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Many species of sea urchins are active nocturnally, moving out of shelters at night to graze. This behavior is correlated with the avoidance of visual predators; however, it also increases exposure to nocturnal predators, including lobsters and asteroids

# data[].attributes.body
Sea urchins will eat just about anything that floats by. Its sharp teeth can scrape algae off rocks, and grind up plankton, kelp, periwinkles, and sometimes even barnacles and mussels. Sea urchins are sought out as food by birds, sea stars, cod, lobsters, and foxes.

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As echinoderms, sea urchins have pentaradial symmetry. Skeleton made of calcite. Typically, the body is ovoid shaped with spines; the upper surface is domed and the underside is flattened. The mouth has a complex structure made up of five calcium carbonate plates.

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Sea urchins will eat just about anything that floats by. Its sharp teeth can scrape algae off rocks, and grind up plankton, kelp, periwinkles, and sometimes even barnacles and mussels. Sea urchins are sought out as food by birds, sea stars, cod, lobsters, and foxes.

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Sea urchins are sought out as food by birds, sea stars, cod, lobsters, and foxes.

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Sea Urchins are omnivores and they normally eat food like Algae, Jellyfish, Barnacles and Plankton.

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Sea Urchins eat algae, seaweed, mussels, clams, barnacles, jellyfish and any plant nearby or animal that swim by.

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The species that are found and taken to a lab is most likely to live in the intertidal or the shallow subtidal.

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Sea urchins will eat just about anything that floats by.

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Many species of sea urchins are active nocturnally, moving out of shelters at night to graze.

# data[].attributes.body
As echinoderms, sea urchins have pentaradial symmetry.

# data[].attributes.body
Sea urchins will eat anything that floats by. Its sharp teeth can scrape algae off rocks, and grind up plankton, kelp, periwinkles, and sometimes even barnacles and mussels. Sea urchins are sought out as food by birds, sea stars, cod, lobsters, and foxes.

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These spiky little sea creatures are incredibly common throughout the world. They are slow moving creatures, which are commonly found in the intertidal zones of rocky shorelines. Sea urchins have a number of surprising traits to help keep them alive.

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As echinoderms, sea urchins have pentaradial symmetry. Skeleton made of calcite. Typically, the body is ovoid shaped with spines; the upper surface is domed and the underside is flattened. The mouth has a complex structure made up of five calcium carbonate plates.

# data[].attributes.body
Sea urchins will eat just anything that floats by. Its sharp teeth can scrape algae off rocks, and grind up plankton, kelp, periwinkles, and sometimes even barnacles and mussels. Sea urchins are sought out as food by birds, sea stars, cod, lobsters, and foxes.

# data[].attributes.body
Sea urchins live only in the ocean and cannot survive in fresh water. They are found from the intertidal to the deep ocean. The species that we are likely to use in the lab are either from the intertidal or the shallow subtidal.

# data[].attributes.body
Sea urchins will eat just about anything that floats by. Its sharp teeth can scrape algae off rocks, and grind up plankton, kelp, periwinkles, and sometimes even barnacles and mussels. Sea urchins are sought out as food by birds, sea stars, cod and lobsters.