What is the main reason why "horse dung sea urchin" got its name? This question was asked in Alipay Magic Ocean’s popular science Q&A on September 12. Many friends still don’t know the answer to this question. It doesn’t matter, then the editor will introduce to you the answers to the 2024.9.12 Magical Ocean Science Questions and Answers.
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What is the main reason why "horse dung sea urchin" got its name?
Appearance features
Horse urchins are small sea urchins, usually less than 5 centimeters in diameter. It belongs to the class Echinacea, order Echinacea, and the only species in the genus Echinacea, family Echinaceae. The shell is mainly dark green or gray-white or brown-red, and the spines are short and dense and look like dried horse dung, hence the name.
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