Some species are all female and they still make babies

Grade level
Time
21 minutes
Start the lessonPrint the worksheetTeacher guide
Time
31 minutes
Start the lessonPrint the worksheetTeacher guide
Time
33 minutes
Materials needed
A calculator or scratch paper
Start the lessonPrint the worksheetTeacher guide
A desert grassland whiptail lizard, a species with no males
Sources
  1. Aracely Lutes, Peter Baumann and colleagues, Stowers Institute, Nature, 2010
  2. A. A. Newton, P. Baumann and colleagues, Development, 2016
  3. David Crews, Mark Grassman and Jonathan Lindzey, University of Texas at Austin, PNAS, 1986
  4. Yuan Lu, Wesley Warren, Manfred Schartl and colleagues, Genome Research, 2021
  5. Review by Kathrin Lampert and Manfred Schartl, BMC Biology, 2010
  6. Florida Museum of Natural History, Florida snake ID guide
  7. Toronto Zoo, Desert grassland whiptail page
  8. The Reptile Database, Aspidoscelis uniparens entry
  9. Vision and Change core concepts and competencies, as summarized in Brownell and others, CBE Life Sciences Education, 2014
  10. Word origins from Dictionary.com: unisexual, uni-, unison, gynogenesis, gyno-, kleptomania