9 Sea Urchin Facts

Fact about Sea Urchin Reproduction

The mode of reproduction for sea urchins is sexual and two different genders exist. The animal attains sexual maturity between the ages of two to five years. The females release their jelly-coated eggs in the water while the males release their sperms. Upon their successful union, the eggs are fertilized. A fertilized egg develops into a larva which is also referred to as pluteus. At the larval stage, individuals cannot be distinguished as males or females until they attain sexual maturity and release eggs or sperms.

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