[grey_whiskers]

Yes they can, but if they have caused a mutation that generated another species, what did that mutant breed with? After all, one of the definitions of "species" is that it the organism can successfully breed with others of it's own species, but not with any other.

Which came first, the chicken or the egg?

Why, the rooster came first, he always does...

Otherwise, the egg never gets fertilized ! /grin

Cheers!

[bvw]

Where were you when I was five years old and werestling with that question? Well, finally, finally -- that's settled! Thanks.