Nature · 3
In lanternsharks of the genus Etmopterus, what purpose do scientists believe their species-specific patterns of glowing photophores primarily serve?
Answer
Helping individuals recognize members of their own species
Studies of lanternsharks found that the arrangement of light-producing photophores differs distinctly between species, leading researchers to propose it functions as a visual signal for species and possibly mate recognition in the deep, dark ocean.
💡 Did you know?
Certain deep-sea sharks glow with a greenish bioluminescence visible only to other sharks, creating an invisible language humans couldn't detect until recent camera technology.
Other options people guess
- Attracting prey close enough to strike
- Warding off larger predatory sharks
- Regulating the shark's internal body temperature
Topics
- sharks
- bioluminescence
- deep-sea
- animal-communication
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