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Lucy skeleton

Lucy skeleton. Lucy skeleton (brown=fossils discovered). Comparison of pelvis. Australopithecus footprint fossil. What inferences can be made from the shape of this footprint?. Australopithicus afarensis skull. Lucy Reconstruction. Which came first: upright walking or big brains?.

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Lucy skeleton

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  1. Lucy skeleton

  2. Lucy skeleton (brown=fossils discovered)

  3. Comparison of pelvis

  4. Australopithecus footprint fossil What inferences can be made from the shape of this footprint?

  5. Australopithicus afarensis skull

  6. Lucy Reconstruction

  7. Which came first: upright walking or big brains?

  8. Primate Family Tree Which primate is most closely related (shares the most recent common ancestor) to humans? How do we know?

  9. DNA Comparisons

  10. Homologous structures: same structure modified for different function indicates inheritance from a common ancestor

  11. Vertebrate Embryos

  12. Embryonic Development Why would a human embryo have gill slits and a tail?

  13. Sometimes the tail remains!

  14. Vestigial: whale pelvis and femur

  15. Appendix = vestigial caecum (plant digesting organ)

  16. Vestigial wings: Flightless Cormorant

  17. Human vestigial: wisdom teeth

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