[gore3000]

Of course there is - a set of organisms which can reproduce and produce viable offspring. -me-

Lions and tigers, by this definition, are the same species, as are horses and zebras. Would you like to try again?

Nope, I would not. It just proves my point, looks are deceiving and this is the only objective manner of determining a species. The differences between lions and tigers in looks are far, far smaller than those between a chihuahua and a great dane which no one calls different species.

[Right Wing Professor]

Let me make sure I understand you here. You're stating that lions and tigers are the same species?