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Re: Gastric stones of dinosaurs were not for milling food !
Heh. _Average_ 4 bites per minute. For 10 hours. No chewing time figured in.
Chewing takes a _long_ time. [BTW-- cows don't really chew, at least until they
got a load in the tank, so they make a better reference point. Sorry about
Open mouth-- 1 sec. Inhale leaf cluster-- 1 sec. Close mouth-- 1 sec. Pull head
back to "strip'-- 1 sec. Swallow-- 1 sec. That is 12 bites per minute, and
doesn't not include time spent moving to a new stand, locating the next
mouthful, or pre-positioning of head. I think to meet these numbers, even
temporarily, is extraordinarily difficult in realistic scenarios re abundance
and quality of vegetation.
Do you really think they can average 8 bites per minute over the course of a
day? Maybe so, but truly, I think 4 is high. They were not farm animals with
their heads in a feed trough. But this is why a model is needed.
----- Original Message ----
From: David Marjanovic <firstname.lastname@example.org>
To: DML <email@example.com>
Sent: Sunday, December 31, 2006 12:44:51 PM
Subject: Re: Gastric stones of dinosaurs were not for milling food !
> average of 4 bites/minute
That is my point. I think this number is too low by a factor of at least 2.
No need to waste 15 seconds chewing each and every bite.