[AndrewC]

If the claims of the whackos were correct, in the last 30 years (since the claim was first made) somewhere between 25 percent to 100 percent of all species on the planet would now be extinct -- this is something not supported by the empirical evidence.

Well, "Howdy Doody", I guess that means that speciation is not happening to replenish the losses. Darwin would be unhappy about that empirical evidence.

[Junior]

You are a master at reading that which is not there. Speciation, as has been stated before on these threads (though I don't expect you'd admit to seeing such) does not occur overnight -- and would therefore be incapable of keeping up with the supposed level of extinction referred to by Miss Barbara.