RSS 2.0 Feed

» Welcome Guest Log In :: Register

Pages: (249) < [1] 2 3 4 5 6 ... >   
  Topic: Joe G.'s Tardgasm, How long can it last?< Next Oldest | Next Newest >  
The whole truth



Posts: 972
Joined: Jan. 2012

(Permalink) Posted: Oct. 24 2012,07:25   

Quote (Quack @ Oct. 24 2012,03:34)
Quote
And Tiktaalik bugs you no end, doesn't it joey? It eats at you night and day and crawls over your skin like an incurable rash. It's a monster that lives under your bed and an irritating itch that you can't scratch. It's the monkey on your back and the fly in your soup. You're obsessed with it because it's a profound example of evolution and common descent and you just won't tolerate anything that goes against your fairy tale belief that the designer allah individually and 'specially' created every 'kind', and especially humans, and especially you.


Joe's "kinds' must be a great stumbling block to him.

We now know that there are many species genetically separated to a degree that interbreeding is impossible, and yet theey may be close to (or even?) impossible to differentiate between morphologically.

I just read about a species of frog that turned out actually to be three different species and yet they share the same habitat and appear as one homogenous species, but they can not and do not interbreed. Yet sharing the same ecological niche, isn't that a nice problem after being separate for 20 million years?

OTOH, species may be very similar in gentoype and yet be very dissimilar in phenotype.

"We now know that there are many species genetically separated to a degree that interbreeding is impossible, and yet theey may be close to (or even?) impossible to differentiate between morphologically."

Some butterflies come to mind. With some of them morphological similarities or differences can be very unreliable when trying to determine which species is which. Even microscopic dissection of the genitalia (a common practice by some lepidopterists) isn't always fool proof. DNA studies are turning up some surprises, and renaming and/or the reassignment of species or genera is fairly common.

--------------
Think not that I am come to send peace on earth: I came not to send peace, but a sword. - Jesus in Matthew 10:34

But those mine enemies, which would not that I should reign over them, bring hither, and slay them before me. -Jesus in Luke 19:27

   
  7465 replies since Feb. 24 2010,12:00 < Next Oldest | Next Newest >  

Pages: (249) < [1] 2 3 4 5 6 ... >   


Track this topic Email this topic Print this topic

[ Read the Board Rules ] | [Useful Links] | [Evolving Designs]