Speculative review on the origin of eukaryotes: Extreme environments and the relative contribution of survival and fecundity to fitness

This paper reviews the fossil evidence and theoretical scenarios pertaining to the second biggest (the first being the origin of life) unanswered question in evolutionary biology; the origin of eukaryotes (large complex cells with nuclei). I suggest that this event illustrates a general principle: Qualitative transitions in biological complexity occur when the physical environment forces survival, rather than fecundity, to become the dominant component of fitness. I also argue that this is relevant to the general idea of novelty as a result of the forcing together of qualitatively different systems that function in similar ways but are composed of different stuff…

eukaryotes final

 

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s