JOURNAL ARTICLE

WHAT ARE SAND DOLLARS?

  • Published In: How It Works, 2024, n. 189. P. 52 1 of 3

  • Database: Science Reference Ultimate 2 of 3

  • Authored By: DUTFIELD, SCOTT 3 of 3

Abstract

Sand dollars are small marine invertebrates that live on the seafloor. They have a disc-shaped body and can be identified by their red or purple velvet-like coats and star-shaped lines on their surface. When alive, sand dollars move by grabbing the seabed with hair-like extensions on their feet. They have small stinging cells to deter predators. Sand dollars feed on phytoplankton, algae, and larvae of crustaceans and fish. They reproduce using broadcast spawning, where females release eggs into the sea and males release sperm. Sand dollars can live together in large numbers on the ocean floor, ensuring their survival. [Extracted from the article]

Additional Information

  • Source:How It Works. 2024/05, Issue 189, p52
  • Document Type:Article
  • Subject Area:Zoology
  • Publication Date:2024
  • ISSN:2041-7322
  • Accession Number:176425371
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