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Tiny Divers Challenge a Major Theory About Ocean Insects - SciTechDaily

scitechdaily.com

Lake fly larvae dive hundreds of meters using pressure-resistant air sacs — a trick that upends the leading theory for why insects vanished from the ocean.

Evolutionary Constraint TheoryCompetitive Exclusion PrincipleNiche TheoryPhysiological Adaptation

Theory Briefing

  • Lake fly larvae can dive hundreds of meters deep, a feat scientists thought impossible for air-breathing insects.
  • Pressure-resistant air sacs let the larvae survive crushing depths, directly challenging the theory that pressure drove insects out of the ocean.
  • The discovery complicates a long-standing explanation for one of biology's great puzzles: why insects never conquered the sea.