Do they challenge the definition of species? Not really. The key words are "interbreed successfully"; tigons and ligers generally are sterile and short-lived -- an evolutionary dead end.

It is not clear if they were born during a breeding programme or by accident. There is only one other pair of known surviving tigons in the world. Asta and his sister Tangiere were bred by ...

Tigons are produced when a female lion and male ... Keep repeating the process of selection and breeding until you produce a breed that consistently produces a lot of milk. The key to success ...

Tigons are produced when a female lion and male ... Keep repeating the process of selection and breeding until you produce a breed that consistently produces a lot of milk. The key to success ...