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Re: Diplodocus: Return to the Swamps????
Post by Anthony Docimo rescued from truncation, containing quotes from
> Obviously=2C hippos will be extinct soon.
> hippos can chomp right through a croc=2C thus providing disincentive
> tack hippos.
Adult hippos are too round to be bitten by crocs. I'm not kidding.
Babies are at risk, except they're being defended by the adults like...
The most hippo-like sauropods -- those with the widest and therefore
roundest bodies -- are the titanosaurs, which have been associated with
dry upland regions in at least one recent study.
> (and their legs *are* pillars=2C true=3B but they're also incredably
> - unlike the sauropods I've heard of.
> (hippos use their legs more to punt themselves through the water=2C
> an walking)
Well, they walk at the bottoms of bodies of water (they're much denser
than any sauropod, so they can), and they walk around at night when they
come on land to graze.
Interestingly, despite being digitigrade, hippos are incapable of running.
> > nife-toothed croc-types isn't likely a realistic scenario in a
> The image of a lone mud-constrained giant covered by ant-like swarms
> of k=
> > are ambush predators=2C=20
> at least the modern crocs are.
That's not the question. The important part is that crocodiles are
capable of learning from the behavior of their prey... they're not too
stupid to pass up a free meal.
> > the water/mud surface=2C they would be quite vulnerable to croc
> > especially if the head was also at that level. In shallower
> > t is the croc that is tactically vulnerable=2C mostly to
> Assuming an adult sauropod is in mud so deep that the base of the
> neck at=
> > al here groups* of sauropods are involved.=20
> if the mud is such that it traps the feet of carnivores=2C stomping
> t be a very useful defense.
If the base of the neck is at the mud surface, the poor sauropod cannot
move at any perceptible speed and is therefore a free lunch. :-|
> > nd compacted vegetative material would offer the hind legs an
> > tform from which to launch a counter-attack w/ the relatively
> Also=2C a well-trodden bottom laced w/ the bones of over-bold
> predators a=
> > feet.
If the forequarters can be pulled out of the mud quickly enough. That is
to be doubted.
> > of migrating wildebeests gives the impression that even w/ those
> > small herbivores=2C attack success is hardly guaranteed. Further=2C
> > ng a sauropod into bite-size chunks might prove to be somewhat
> Watching the familiar video of the gigantic croc(s) attacking the
> flanks =
> > =2C=20
If it can't move quickly enough, it's a free lunch.
Crown-group crocodiles, *Deinosuchus* included, have conical teeth as
incapable of cutting as a wolf's canines. The goniopholidids are outside
the crown group, and they have cutting edges on their teeth. They're
known from the Early Jurassic through the Late Cretaceous, and I think
the very end of the latter.