Nature · 2

What do Hawaiian bobtail squid hatchlings do shortly after hatching to obtain their own source of glowing light?

Answer

They ingest bioluminescent bacteria from the water and cultivate them in a specialized light organ

Hawaiian bobtail squid hatchlings actively take up free-living Vibrio fischeri bacteria from seawater and house them in a dedicated light organ, effectively farming the microbes for light.

💡 Did you know?

Glowing squid hatchlings deliberately eat bioluminescent bacteria and farm them in pouches, essentially raising a light-producing pet inside their own body.

Other options people guess

  • They inherit the glowing bacteria directly from their mother's egg yolk
  • They synthesize their own light-producing chemicals without any bacteria
  • They absorb light-emitting algae through their skin like coral do

Topics

  • bioluminescence
  • squid
  • symbiosis
  • marine-biology

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