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Re: Tyrannosaurus "Scavenger vs. Predator" debate - Some questions for Dr. Jack Horner:
Phil, my experience with bloat&floaters has been mostly limited to
humans, during search and rescue operations. With that as a constraint,
It's been my experience that the eddies that tend to capture human
bodies also tend to capture pretty much everything that is floating and
is entrained by the eddy. Sticks, logs, milk cartons, etc.
Overflow areas (forming temporary weirs) result in another type of
capture scenario, that captures selectively depending upon submergence
depth, and that submergence depth varies with time. Unless stuff is very
large, you usually capture mostly floaters from the trailing limb of an
overflow, with most smaller captures occuring later in the event as the
flow depth decreases.
In my opinion, the scenarios that would sort by species would be
remotely possible, but very rare, and they would be blurred by other
on-going time-dependent processes.
Jim
Phil Bigelow wrote:
> Are the accumulations of corpses in river eddies
> usually associated with only one particular herd, or are individuals from
> different (and geographically separate) herds represented at each
> depositional site?
>
> And does a Wildebeast's corpse float in a river longer than, say, a
> Gemsbock's corpse? (a corollary to Bloat and Float). Could this fluvial
> phenomenon (if it actually exists) segregate corpses with respect to
> species?