Pencil+Sea+Urchin

=Pencil Sea Urchins (Eucidaris tribulodes)=
 * =Habitat=
 * Sea Urchins are found in oceans
 * =Range=
 * There are found in oceans all over the world, like the Pacific Ocean by Hawaii.
 * =Physical Characteristics=
 * Pencil Sea Urchins are small, long spiked looking figures. They come in multiple colors. The size of an adult test is 3 to 10 cm, they have 5 teeth.
 * =Diet=
 * They eat seaweed, algae and bits of plants and animals.
 * =Behavior and Adaptations=
 * Sea Urchins are often found living in clumps from five to ten. They have the ability to re-grow lost spines. Lifespan often exceeds 30 years, and scientists have found some specimens to be over 200 years old.
 * =Reproduction=
 * Eggs are fertilized externally while they float in the ocean, and planktonic larvae (echinopluteus) remain in the water column for about a month before settling on the bottom of the sea floor, where they undergo metamorphosis into juvenile urchins. Then they can use chemical cues to locate adults.
 * =Relationship to People=
 * Some Sea Urchins are kept as pets in peoples homes, or in a fish store at an aquarium. Mostly in the ocean.
 * =Status=
 * Sea Urchins are not not currently endangered.
 * =History=
 * Sea Urchins are related to the Starfish.
 * =Status=
 * Sea Urchins are not not currently endangered.
 * =History=
 * Sea Urchins are related to the Starfish.