Squid egg casings. Each casing housings hundreds of tiny squid eggs. After the female squid has planted her egg casings to the sandy bottom, she will die.
Species: Common squid, Loligo opalescens
Image ID: 14931
Purple sea urchin, spawning, releasing gametes into the ocean currents. Once adult purple sea urchins have reached sexual maturity, females and males release gametes into the ocean, a mode of external fertilization. The fertilized egg later settles, and begins growing into an adult.
Species: Purple urchin, Strongylocentrotus purpuratus
Image ID: 05346