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Starfish, or sea stars, exhibit diverse and fascinating reproductive strategies that ensure the continuation of their species in the vast oceans. Many starfish species reproduce sexually, releasing eggs and sperm into the water where fertilization occurs externally. The resulting larvae, known as bipinnaria or brachiolaria, drift in the plankton, undergoing a complex metamorphosis before settling on the ocean floor as juvenile starfish. Some species practice brooding, where females protect their developing eggs beneath their arms or in special pouches. Remarkably, certain starfish can also reproduce asexually through fission, where the animal splits its body to form two or more new individuals. This variety in reproductive methods showcases the adaptability of starfish to different marine environments and contributes to their widespread distribution across the world's oceans, making them an intriguing subject for studying marine life cycles and population dynamics.
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Starfish have interesting ways of making babies. Some starfish release eggs and sperm into the water. These join to make tiny starfish larvae. The larvae float in the water and grow slowly. Other starfish keep their eggs safe under their arms. When the eggs hatch, the baby starfish look like tiny adults.
Some starfish can even split their bodies to make new starfish. This is called asexual reproduction. Starfish babies are very small and must grow a lot to become adult starfish.
Where do some starfish release their eggs?
On the beachIn the waterUnder rocksIn shells
What are baby starfish called when they first hatch?
LarvaeTadpolesFingerlingsPups
Where do some starfish keep their eggs safe?
In their mouthUnder their armsIn the sandOn coral reefs
What is it called when a starfish splits its body to make new starfish?
Sexual reproductionAsexual reproductionMetamorphosisMolting
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