Facts about Ctenophore

1. 08

   Unlike most animals, ctenophores are hermaphrodites that can release both eggs and sperm into the water simultaneously, enabling self-fertilization in some species.

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2. 07

   Ctenophore larvae develop through a planula-like stage before metamorphosing into their adult form, a process that can take several days depending on water temperature and species.

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3. 06

   Ctenes, the comb-like rows of cilia on ctenophores, beat in metachronal waves that create synchronized propulsion through water without requiring muscular contractions.

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4. 05

   Bioluminescence in deep-sea ctenophores like Atolla produces a bright pinwheel display when threatened, attracting larger predators to distract attackers from the ctenophore itself.

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5. 04

   Ctenophores possess a simple nerve net with no centralized brain, yet they can detect light through photoreceptor cells and respond to chemical signals within milliseconds.

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6. 03

   Most ctenophores lack true muscles and instead rely on contractile fibers beneath their ciliated rows to propel themselves through ocean water at speeds up to 1.5 meters per second.

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7. 02

   The Venus girdle, a ribbon-shaped ctenophore species, can stretch up to 1.5 meters long while remaining only a few millimeters thick.

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8. 01

   Eight rows of ciliated plates running along the body of ctenophores refract light to produce iridescent rainbow colors.

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