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Forum: Sciences

02-22-2007, 10:02 AM

Replies: 20

Why Would Science Daily Use Such a Headline

Views: 3,557

Posted By a different tim

Thanks, BEAJ. OK, so he's talking about...

Thanks, BEAJ.

OK, so he's talking about saltation due to hox gene type alterations. Genetically speaking, I should point out, it's still gradualistic.

His take on adaptation puzzles me. Adaptation...

Forum: Sciences

02-21-2007, 09:29 AM

Replies: 20

Why Would Science Daily Use Such a Headline

Views: 3,557

Posted By a different tim

Well, this is the current model, but what the...

Well, this is the current model, but what the prof seems to be arguing for is saltation - i.e. large phenotypic change and even speciation in one generation - as opposed to the kind of high speed...

Forum: Sciences

02-21-2007, 03:49 AM

Replies: 20

Why Would Science Daily Use Such a Headline

Views: 3,557

Posted By a different tim

I think PE was always supposed to be "rapid...

I think PE was always supposed to be "rapid gradualism" although Gould flirted with saltation in the 80s. What you're saying is pretty much the Dawkins view - evolution is always happening, sometimes...

Forum: Sciences

02-20-2007, 09:03 AM

Replies: 20

Why Would Science Daily Use Such a Headline

Views: 3,557

Posted By a different tim

The nylon bug is gradualism, I think. I'd assume...

The nylon bug is gradualism, I think. I'd assume it's one mutation away from whatever it used to metabolise. It would count as a gradual change. The thing is, that when you get to the molecular level...

Forum: Sciences

02-20-2007, 07:19 AM

Replies: 20

Why Would Science Daily Use Such a Headline

Views: 3,557

Posted By a different tim

If this is the case, fair dos on the duck. I...

If this is the case, fair dos on the duck. I assumed it was a mutation. I should have linked to the fruit flies with legs (http://evolution.berkeley.edu/evolibrary/article/0_0_0/evodevo_05) and eyes...

Forum: Sciences

02-20-2007, 03:44 AM

Replies: 20

Why Would Science Daily Use Such a Headline

Views: 3,557

Posted By a different tim

Yeah. This is about saltation (sudden jumps in...

Yeah. This is about saltation (sudden jumps in evolution) as opposed to gradualism. Darwin is about more than common descent - he proposes a mechanism for evolution (natural selection) and argues...

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