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Dr. Chris Lavers wrote:
> 3) Rivers receive organic detritus from the land and many food chains are
> partly built on this material (detritus - invertebrate - small fish - big
> fish - turtle/croc). The flow of detritus persisted long after edible
> material firther out on the watershed had been exhausted so the food chain
> persisted also.
> 4) Animals at the top of freshwater food chains were ectotherms with low
> food requirements and the ability to fast for long periods.
That is exactly how I see it.
Dinamation Int'l Soc.
- From: "Dr. Chris Lavers" <email@example.com>