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Re: Huge Freakin' Snake!

The videos of Youtube are likely situtations created by humans,
putting a snake close to the felids, to film what happens (this is a
bad thing that appear to happen even in documentaries that attempt to be
educative). These animals probably do not show a natural behavior, and
perhaps the snake, after being manipulated by many humans (more than
two humans can esaily avoid to be killed by an anaconda by uncoiling
it), perhaps was somewhat "tamed", less aggressive than a wild boid
that was never manipulated. A jaguar can not be manipulated, and has
to be managed at distance, so perhaps they are not equally tame.

2009/2/8, John Scanlon <riversleigh@outbackatisa.com.au>:
> Looks like the snake was cold or something, as well as relatively small (3 m
> or so, possibly less than two years old). I thought it should have been able
> to bite and constrict, but never strikes. I know a python who was badly
> bitten by a rat once, and has been terrified of rats ever since; also, in
> other species of snakes I've kept there's a lot of variation in competence
> at dealing with certain prey types, and phenotypic plasticity where
> incubation conditions affect speed and strength is now well known. With
> another snake on another day, the results would have been different
> (anacondas eat jaguars too). That's why Mrs Jaguar was so impressed.
> -----------------------------------------------
> Dr John D. Scanlon, FCD
> Riversleigh Fossil Centre, Outback at Isa
> riversleigh@outbackatisa.com.au
> http://tinyurl.com/f2rby
> "Get this $%#@* python off me!", said Tom laocoonically.
> -----Original Message-----
> From: Dann Pigdon [mailto:dannj@alphalink.com.au]
> Sent: 06 February, 2009 2:04 PM
> To: dinosaur@usc.edu
> Subject: Re: Huge Freakin' Snake!
> Quoting Augusto Haro <augustoharo@gmail.com>:
>> Ok., boids are slower than most other snakes. It may be partially for
>> their locomotion, walking by moving scale per scale, instead of the
>> lateral ondulation of most other, faster caenophidians. But that does
>> not seem to mean that all movements of the snake will be slow, as you
>> say in your second message on the velocity of boids to coil around
>> their foes.
> Here's what happens when a powerful and agile endotherm (in this case a
> Jaguar) decides to take
> on a large ectotherm (an anaconda):
> http://www.youtube.com/watch?v=hBebLguAfwg
> The snake easily outweighs the jaguar, yet it's far too concerned about
> trying to escape to make
> any serious attempt at throwing some coils around it's attacker.
> Is it usual to see a male jaguar catching prey to feed it's partner and cub?
> Mrs jaguar even helps
> out towards the end (although after the black male has done most of the
> dangerous work).
> --
> ___________________________________________________________________
> Dann Pigdon
> GIS / Archaeologist              http://geo_cities.com/dannsdinosaurs
> Melbourne, Australia             http://heretichides.soffiles.com
> ___________________________________________________________________