I was listening to KFOG's Acoustic
Sunrise on the radio. Rosalie said
that the Walking With Dinosaurs thing at HP Pavilion is great, and that
"Kids really love it!" I figured why not and asked Melanie if I could
take Jamie to see it. She said okay, so I did. This is some of
what we saw.
As the show opened this guy came out to
explain that vertebrates first evolved in the water. The adaptation
that made exploring the land possible for them was the egg, which gave
the young a safe place to develop their organs before going out into
the world. About then the first full sized beast came out, this agile
predator who
promptly ate the guy who had just crawled out of the egg.
About then this large herbivore
lumbered onto the scene. At that point some dinosaurs were already
quite
large.
She was the mother of that brood of
eggs. The narrator explained that by this time evolution had evolved
the
instincts in mothers to fight for their young. It wasn't long before
she drove off the ancestor of T-Rex.
At the beginning of that period all the
land on earth was still in one continent, Pangaea. Slowly as time
progressed the tectonic shifting that later will produce the continents
as we know them creates narrow sea channels between the land masses.
Plants evolve to grow large, and some
of them already look the way we know their children today. Much of what
happened in those days is a total mystery. So much of what we know is
based on speculation about the few bones that survive. For a scientist,
more information about how things really were is valuable. A single
footprint
can give us ideas about what the flesh on the bones we see looked like.
A whole row of footprints can say so
much about what the musculature was capable of, everything from walk to
weight.
The biggest herbivore of this time
frame has these mysterious big triangular bones on his back. The
narrator acted puzzled about what the triangular bones were for. His
best guess was that they fill with blood and turn red when predators
are around to warn others to stay away.
A few million years later the biggest
land animal to ever evolve came along, brontosaurus. This particular
one was still a juvenile, and as such more likely to be prey for
predators like the guy in the background.
About then a really huge mama
brontosaurus came out and the narrator explained that the instinct to
protect the young is still a successful gene, and brontosaurus had it
to.
It wasn't hard for her to scare of the
predator.
As the continents slowly drifted apart,
it created niches where the ability to fly was a real competitive
advantage. Guys like this one evolved to fill them. The modern
descendants of these beasts are the birds we are all aware of.
By this time behavior adaptations like
pecking orders have evolved. Weak and young creatures like the
one not eating yet have to wait for their betters to finish before they
pick through the leftovers.
Another 75 million years pass. All the
way back to the beginning, plants have had to deal with insects preying
on them for food. However, flowers are a symptom of more symbiotic
relationships. The insects have learned to pollinate in exchange for
food, and the plants have learned to support their pollinators.
The peak herbivores of this time fame
is triceratops, whose large bony eyebrow thingie seems to have evolved
as a sexual display. Now herds of these guys have competitions between
males for the top guy status. Whose bony eyebrow thingie is bigger
seems to be an important consideration.
These two guys battled it out for head
guy status. The noises were very loud, and it was very dramatic.
Eventually, the old boss gave up and
slunk off. Meet the new boss! The narrator explained that already the
battle scars are more emotional than physical for these guys.
The boss left a stool on the stage. The
narrator explained that even then dung beetles were recycling such
stuff into raw materials for the next set of plants to grow on.
This guy was the most armored being to
evolve on earth so far. The bones in the guys tail alone weigh more
than 150 pounds.
Tyrannosaurus Rex is the peak predator
of these days.
There was an epic battle between these
beasts.
The narrator's parting thougth was that
even Tyrannosaurus Rex cared about her
young. Jamie thought the whole thing was great. If you get the
opportunity to share Walking With Dinosaurs with some kid go for it!
After the show we
walked back to his mom's place. He didn't like that part much but he
did it.
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