Jan, JWs still reject evolution, though I don't know if they have produced any such literature recently. They've produced two or three books denying evolution in the past.
They used to also have this strange in-between approach to the age of the universe, insisting that each creative day was 7,000 years long. This meant that the universe wasn't 6,000 years old or 13.8 billion years old. It was around 42,000 years old. I think they dropped that teaching at some point, though.