Nonvisual light reception

Sci Am. 1972 Mar;226(3):22-9. doi: 10.1038/scientificamerican0372-22.
No abstract available

MeSH terms

  • Animals
  • Birds
  • Brain / physiology*
  • Circadian Rhythm*
  • Darkness
  • Light
  • Male
  • Motor Activity
  • Periodicity
  • Photoreceptor Cells / physiology*
  • Testis / growth & development