Contributions de LeidyD

26 mars 2020

• 15:1226 mars 2020 à 15:12 diff hist +107 OHS2020 Chap1 →Why is fossilization considered as a rare process?
• 15:0726 mars 2020 à 15:07 diff hist +12 OHS2020 Chap1 →Why is fossilization considered as a rare process? Balise : Éditeur visuel

21 mars 2020

• 12:3421 mars 2020 à 12:34 diff hist +57 OHS2020 Chap1 →How do we know that our human story began 7 million years ago? Balise : Éditeur visuel