I've tried to get an answer to this before, but have yet to receive any sort of substantive response.
From a biological stand-point, the definitions of "micro" and "macro" evolution seem to be as follows:
microevolution - evolution within a particular species
macroevolution - evolution between species (in other words, diverging populations that eventually become distinct species; naturally common decent is included in this definition)
Now, I notice some people accept speciation (populations diverging into new species), but seem to put draw a barrier at some point. And what that point is, I still haven't been able to find out (hence, I'm trying to find out).
So, I present to you Exhibit A. It's a picture I made containing nine members of the family Felidae (the "cat" family). The animals in question are (from left to right, top to bottom):
Caracal (Caracal caracal)
Marbeled Cat (Pardofelis marmorata)
Sandcat (Felis margarita)
Flat-headed cat (Prionailurus planiceps)
Tiger (Panthera tigris)
Serval (Leptailarus serval)
Canadian Lynx (Lynx canadensis)
Jaguarundi (Herpailurus yaguarondi)
Asian Golded Cat (Catopuma temmincki)
I want to know, do you believe these animals could have arisen from a common ancestor? If not, why not?
From a biological stand-point, the definitions of "micro" and "macro" evolution seem to be as follows:
microevolution - evolution within a particular species
macroevolution - evolution between species (in other words, diverging populations that eventually become distinct species; naturally common decent is included in this definition)
Now, I notice some people accept speciation (populations diverging into new species), but seem to put draw a barrier at some point. And what that point is, I still haven't been able to find out (hence, I'm trying to find out).
So, I present to you Exhibit A. It's a picture I made containing nine members of the family Felidae (the "cat" family). The animals in question are (from left to right, top to bottom):
Caracal (Caracal caracal)
Marbeled Cat (Pardofelis marmorata)
Sandcat (Felis margarita)
Flat-headed cat (Prionailurus planiceps)
Tiger (Panthera tigris)
Serval (Leptailarus serval)
Canadian Lynx (Lynx canadensis)
Jaguarundi (Herpailurus yaguarondi)
Asian Golded Cat (Catopuma temmincki)
I want to know, do you believe these animals could have arisen from a common ancestor? If not, why not?