From: Jeremy Bradley (jeremyb@nor.com.au)
Date: Tue 10 Dec 2002 - 09:24:03 GMT
Snip.......Jeremy
>> As for the crocs Steve, their numbers were in decline but are now becoming
>> a bit of a nusence in some areas. But, as yet, there are no decernable
>> signs that they have recommenced the evolution process
>
Steve:
>Query? Were they in decline because they were being hunted by us? And were
>they made a protected species by us? Ie their environment changed and they
>began to decline. Their environment changed again and they began to prosper
>again. Sounds like evolution to me :-)
Yes, the fertility control was not 100% effective - but few are. Yes, crocs
were nearly hunted to extinction for handbags and shoes. Yes, we acted to
protect them. No, small changes in their environment, such as we have made,
have not effected them much. In the past 50,000,000 years crocodiles have
survived many environmental changes far greater than the impact of humans
but they remain unchanged. They were here with the dinosaurs and they well
may be here after humans become extinct.
Jeremy
===============================================================
This was distributed via the memetics list associated with the
Journal of Memetics - Evolutionary Models of Information Transmission
For information about the journal and the list (e.g. unsubscribing)
see: http://www.cpm.mmu.ac.uk/jom-emit
This archive was generated by hypermail 2.1.5 : Tue 10 Dec 2002 - 09:26:59 GMT