If it is the latter you should really use the term ‘kind’ as in “No two kinds can interbreed”. I wouldn’t have objected to that statement. Your statement however was demonstrably false, showing complete ignorance of the subject matter. Par for the course for people on the Cre/I.D. side unfortunately. It might help to know the very basic rudiments of an idea before you go around saying it is wrong, and making absolutely false statements about the possibility of species interbreeding.
Different species interbreeding is a very small part of evolution anyway, mostly in plants from what I know. So why display your abject ignorance about interbreeding species when throwing aspersions upon the theory of evolution through natural selection? I guess when you don’t know what the target is, or what it does, or where it is, you just spray bullets around hoping you hit something. Well all you did was shoot yourself in the foot with a statement that species cannot interbreed.
Can you tell me the success rate of breeding a lion with a tiger? What are the chances of its offpring living long enough to reproduce? Perhaps 1 in 500,000? Your lion and tiger example is weak.