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Re: Trexie and whales..?!
> Um, careful, in many present ecosystems the top predator is quite small
> compared to the top herbivore. ( E.g., lion/African elephant, tiger/Indian
> elephant.) If one were to model a late Cretaceous North American ecosystem
> on the present-day Serengeti, then the top predator might well be a
> lion-sized theropod that took gnu-sized adult herbivores and an occasional
> calf of something larger, while the _T._rex_es sat around eating road kill
> and playing tiddley-winks with _Triceratops_ in their spare time.
I notice in both these cases, the top predator is also the BIGGEST
carnivore around. Are there any modern ecosystems where the top predator
is smaller than the largest carnivore (which is presumably a scavenger)?