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Re: dino-lice



Well, admitting high reproductive rates for even large dinosaurs, as
supported by the paper on the biology of sauropods, and the presence
of a greater diversity and presumably biomass of crocodiles, it seems
likely that eggs would have been a quite most abundant resource than
in our days. So, it may have been easier for some Mesozoic animal to
become an "egg specialist" than today when we mostly have relatively
small birds and squamates as producers, perhaps supplementing diet
with other small foods.

2011/4/20 Augusto Haro <augustoharo@gmail.com>:
> 2011/4/20 Augusto Haro <augustoharo@gmail.com>:
>
>> If we
>> talk about breaking bark, we do not need to hypothesize unique
>> reliance on social insects, for arthropods in general on rotting trees
>> may be made available.
>
> Now I read Thomas Holtz's assertion that alvarezsaurs lived in mainly
> treeless habitats, and Tim's assertion that cursorial animals do not
> show low metabolic rates, while ant-eaters above 1 kg. do. My opinion
> is that alvarezsaurs may have been omnivores eating soft foods that
> needed not to be cutted or teared with its delicate snout, as insects,
> small animals in general and soft plants or grains. But, for accessing
> to them, may we envisage some other thing which is hard but can be
> breaked up by putting point pressure upon it? Perhaps large
> seeds/fruits, hardened soil (if the alvarezsaur had a rather good
> smell), relatively large eggs of other dinosaurs? I do not know.
>