[Wonder Warthog]

"OK, when did selective breeding become the same as evolution? "

Always. The only difference is the agency doing the selection. The key facet of evolutionary theory is isolated populations facing different environmental challenges. The only difference here is that the "isolation" and selection "vector" are imposed by humans rather than Mother Nature.

[guitarplayer1953]

Sounds like intelligent design to me.

[tet68]

This means, for instance, that a Collie has a skull shape that is more different from that of a Pekingese than the skull shape of the cat is from that of a walrus.

Does this really make any sense? and what difference
does it make??

[Tublecane]

“The key facet of evolutionary theory is isolated populations facing different environmental challenges. The only difference here is that the ‘isolation’ and selection ‘vector’ are imposed by humans rather than Mother Nature.”

To my mind, that’s a HUGE difference, so much so that you’re really not studying the same thing at all. It’s the difference between a Blind Watchmaker and Intelligent Design.