Re: Why didn't at least one dinosaur species become human-level smart?

On Dec 12, 12:43 pm, c...@xxxxxxxx (Curt Welch) wrote:
The Translucent Amoebae <transamoe...@xxxxxxxxxx> wrote:



On Dec 11, 8:24 pm, c...@xxxxxxxx (Curt Welch) wrote:
Don Geddis <d...@xxxxxxxxxx> wrote:
STJensen <RecreationalPo...@xxxxxxxxx> wrote on Mon, 10 Dec 2007:
This is all just wrong. Greater intelligence is only worth the cost
under some environme...

That reset evolution and started the period of stability which led to the
evolution of dinosaurs, which then got all wiped out again by another
impact event 65 million years ago which started our period of evolution.

We have only been around in a stable environment for 65 million years. But
we have animals as big as elephants on land and whales in the ocean.

The dinosaurs had a stable period of 251-65 or 286 million years to grow
large between major extinction events. Give us another 200 million years
of stability and the animals would probably grow larger again.


--
Curt Welch http://CurtWelch.Com/
c...@xxxxxxxx http://NewsReader.Com/

Actually; There is this 'Neglected' period ( that has suffered
publicity wise ) right after the extinction 65 million years ago,
where as there were lots of Big Birds and Mammals, much bigger than
the ones we have today, and just recently; North America and Russia
had lots of Wolly Mammoths and Rhinoceros that apparently evolved
largely to deal with the ice age.
But that was certainly not the reason Dinosaurs were big.

The most convincing reason that i've heard, is that elevated Oxygen
levels encourage species to get bigger, this is especially convincing
when insects are considered.

There is also a curios effect on Islands that dictates that small
animals tend to get larger, and large animals tend to get smaller.
But that's completely unrelated to this...
.

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