Polarized Light Helps Monarch Butterflies Navigate

@article{Reppert2004PolarizedLH,
  title={Polarized Light Helps Monarch Butterflies Navigate},
  author={S. Reppert and Haisun Zhu and R. H. White},
  journal={Current Biology},
  year={2004},
  volume={14},
  pages={155-158}
}
  • S. Reppert, Haisun Zhu, R. H. White
  • Published 2004
  • Biology, Medicine
  • Current Biology
  • During their spectacular migratory journey in the fall, North American monarch butterflies (Danaus plexippus) use a time-compensated sun compass to help them navigate to their overwintering sites in central Mexico. One feature of the sun compass mechanism not fully explored in monarchs is the sunlight-dependent parameters used to navigate. We now provide data suggesting that the angle of polarized skylight (the e-vector) is a relevant orientation parameter. By placing butterflies in a flight… CONTINUE READING
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