(February 3, 2009 at 7:36 pm)leo-rcc Wrote: The male Liger and Tigon is sterile and therefore Ligers and Tigons can't reproduce. Ligers also die sooner than Tigers or Lions probably due to their size.This is where the standard definition of a species comes from. Any animal that can produce fertile offspring with another animal means that both animals are the same species.
The more complex definition is obviously a lot more confusing, as it deals with genetics etc.