Sea Urchins

Very true

Sea urchins are marine creatures. They are echinoderms and belong to the class of Echinoidea. And can be found in the floor of oceans. They prefer areas with coral reef for safety measures.

Sea urchins love to live within the coral reefs for safety measures
Sea urchins love to live within the coral reefs for safety measures

Sea urchin have more than 100 known species. Which are different in sizes, color and shapes. But mainly in round to oval body shapes. Most of them are red, green, brown, purple or black.

They come in different shapes, sizes and colors.
They come in different shapes, sizes and colors.

Sample species of sea urchin include:

  1. Slate pencil urchin
  2. Caribbean sea urchin
  3. Sea potato
  4. Purple sea urchin
  5. Red sea urchin (longest living)

Their bodies are covered by both spikes and hard shell. The ones with longer spikes are the dangerous one. They have no bones.

For you to be able to tell between a female and male. You need a closer microscopic viewing. Or by observing reproduction.

The spikes are used for:

  • Defense
  • Movements
  • Hunting

Some species of sea urchin have spikes containing venom. Hence giving deadly sting to anyone going near them.

Some spikes contain venom, hence should be handled with care.
Some spikes contain venom, hence should be handled with care.

Sea urchin have 5 paired tube feet that have suckers at the bottom. The suckers help in movements, hunting and sticking on surfaces.

Their mouth is located at the center of its body’s underside. And comprises of five tooth-like plates. While the anus is located at the top of its body.

Sea urchin primarily feed on the algae. They do feed on sessile (immobile) or slow-moving animals occasionally as well as dead fish. Hence they are omnivores just like humans.

Sea urchin observe external fertilization. Whereby the female lay eggs and the male spread sperms on them.

Sea urchin are considered a delicacy in some countries. They are also hunted by crabs, birds, sea otter, among others.

Some people consider sea urchins to be a delicacy
Some people consider sea urchins to be a delicacy

Interesting fact:

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Published by Cheche Winnie

Article Writer and Blogger I am blogger , proof reader, writer and copy writer with a Bachelor degree and three years of experience. I write easy to read articles with excellent English and zero grammatical error. Articles that are creative and deliver the inteneded message . I do intense research while writing the articles. I always deliver my work on time and adhere to the timelines given. Always online hence able to start working on your piece as soon as your hire me. I work in real time. Nature Conservationist Passionate about nature conservation education and awareness. I believe that our existence depends on the mother nature. I am also have skills in researching and have managed to publish my own article on the effects of the exotic plants species on the indigenous plants in the Arid lands of Kenya.

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