According to a JW contact, one of the speakers at the Regional Convention™ stated that "for evolution to be true, two of the same kind would have had to evolve at the same time; one would have to be male and the other would have to be female, and then they would have to find each other". Apparently the crowd had a good laugh over how evolutionists overlook such a simple "fact".
Of course, a JW argument like this against evolution is also an argument against the Noachian flood.
For example, upon leaving the ark, the two kangaroos would have to travel together in close contact all the way to Australia over mountain and water. If they would have strayed far from each other, they would have lost contact and become extinct. And technically it isn't just one kangaroo species, so the WT model of history would require several such pairs to make the journey without evolving in any way. And the same thing would have to happen with all those other unique animals down under, including the koala which only eats eucalyptus leaves. If they didn't evolve to this diet, it's the only thing they could have eaten the last 6000 years. So they would have had to travel along a string of these trees from Turkey to Australia... and those trees along the way would have died and left no trace that they ever existed in the area.
Now the forum can have a good laugh over how JWs overlook such a simple fact.