Speciation: Defined? (Introduction)
by David Turell 
, Monday, November 18, 2013, 17:53 (4023 days ago)
The concept of species is actually hard to define. It is not just reproduction:- http://www.the-scientist.com//?articles.view/articleNo/38010/title/How--If--and-Why-Species-Form/
Speciation: Defined?
by David Turell , Monday, April 14, 2014, 17:18 (3876 days ago) @ David Turell
We still have no good definition of "species". Wolves and dogs mate easily, because dogs are really a sub-branch of the wolves they came from by human interferences in breeding:-http://www.sciencedaily.com/releases/2014/04/140414092144.htm