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Re: individual age
At 12:39 PM 1/14/98 -0600, Jonathan R. Wagner wrote:
> I am not positive, but haven't LAGs been observed in
>endotherms which either hibernate or endure harsh seasonality as
This is my understanding as well. (I can't say it is really surprising -
true deep hibernators pretty much turn off metabolism all winter).
> All of this is complicated by the fact that those animals
>lines of arrested growth (LAGs) exhibit reworking of the bone which
>have exhibited LAGs developed early in life (see the bone histology
>in _The Complete Dinosaurs_ for a nice general overview).
Which means that all one can get from LAG's is *minimum* age, not actual
age, even if they are annual. (I suspect they probably are annual).
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