with the ancient definition, there could actually be many species within the one kind. ie, lion, tiger, jaguar, pantha, leopard, cheetah, lynx etc etc etc, If these could all be interbred to produce offspring, then they would all be classed as one 'kind
The point is that they can't. Sterile hybrids can't mate so there could be no continuation of these.
There is no better love between 2 people than mutual respect for each other WT Young, 2002
Who gave anyone the authority to call me an authority on anything. WT Young, 1969
Since Evolution is only ~90% correct it should be thrown out and replaced by Creation which has even a lower % of correctness. W T Young, 2008