- #1
Patzee
- 11
- 2
In a New Scientist article (also posted on many other sites):
"Lab yeast make evolutionary leap to multicellularity" (http://www.newscientist.com/article...ke-evolutionary-leap-to-multicellularity.html)...
there is the statement: "Multicellularity has evolved at least 20 times since life began, but the last time was about 200 million years ago, leaving few clues to the precise sequence of events."
How do they determine this? For example, by discovery of life forms that no longer exist in the fossil record or by some other method?
Thanks! Pat
"Lab yeast make evolutionary leap to multicellularity" (http://www.newscientist.com/article...ke-evolutionary-leap-to-multicellularity.html)...
there is the statement: "Multicellularity has evolved at least 20 times since life began, but the last time was about 200 million years ago, leaving few clues to the precise sequence of events."
How do they determine this? For example, by discovery of life forms that no longer exist in the fossil record or by some other method?
Thanks! Pat