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MISSISSAUGA, , CANADA

Ancestor's Trail

Originally this hike was conceived as a walk back in time (as described in the book and inspired by the UK event) from the current time of Humanity going back to the common ancestor's with various other life forms to the origin of multicellular progenitors of animal life around a billion years ago and beyond to the beginning of life on earth some 3.5 billion years ago. 

However we now start at Erindale Park with the dawn of multicellular life and head up the Culham Trail in Mississauga to the current time of prolific Humanity in the park at the end of PineCliff Drive, mostly hiking along the Credit River.

The entire hike at a gingerly pace of approximately 3-4 km per hour will take about 3-4 hours.  It may take longer with stops along the way to learn about the various key evolutionary splits and events like the five major extinctions and our common ancestry with existing species.  There will be rest & refreshments stops and check-points where participants can get their passports stamped while discussing specific issues on evolution and species in distress.  

Along the way, the 'metazoan algae' who start at Erindale Park will give rise to other life forms as they develop along their unique evolutionary pathways to occupy all the available niches we find them in today.  However, with this audio tour, you may start at either end or even in the middle as the stops will prompt you with the time (in millions of years ago) that we had a common ancestor with the living survivors we know of today.

The main website is at https://www.ancestorstrail.ca/

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1695 Dundas St W, , Mississauga, , ON , Canada
Ancestor's Trail
  1. Ancestor's Trail Hike
  2. Why Is Life On Earth Carbon-Based?
  3. Metazoans
  4. 900MYA we had a common ancestry with Choanoflagellates (non-animal eucaryotes)
  5. 800mya we had a common ancestry with Sponges
  6. 780mya we had a common ancestry with Placozoans
  7. 730mya Ctenophores
  8. 680mya Cnidarians
  9. 630mya Flatworms
  10. 590mya Protosomes
  11. 570mya Ambulacrarians
  12. 565mya Tunicates
  13. 560mya Cephalocordates
  14. 530mya Agnatha
  15. 460mya Chondrichthyes
  16. 440-450mya FIRST GREAT EXTINCTION
  17. 440mya Actinopterygii
  18. 417mya Dipnoi
  19. 360-375mya SECOND GREAT EXTINCTION
  20. 340mya Amphibians
  21. 310mya Sauropsids (lizard-faced non-mammalian chordates)
  22. 251mya THIRD GREAT EXTINCTION
  23. 205mya FOURTH GREAT EXTINCTION
  24. 180mya Monotremes
  25. 140mya Marsupials
  26. 105mya Afrotheres
  27. 95mya Xenarthrans
  28. 85mya Laurasiatheres
  29. 75mya Glires (Rodents and Lagomorphs)
  30. 70mya Non-primate Eurachonta (Cologus and Tree shrews)
  31. 65mya FIFTH GREAT EXTINCTION
  32. 63mya Prosimians
  33. 58mya Tarsiers
  34. 40mya Platyrrhini
  35. 25mya Catarrhini
  36. 18mya Lesser Apes
  37. 14mya Orangutans
  38. 7mya Gorillas
  39. 6mya Chimpanzees and Bonobos
  40. Human Evolution on the Ancestor's Trail
  41. 7 BILLION HUMANS