The answer to this question is not that easy or obvious as you might think. If your answer is "creationists" you are wrong, they are evolutionists – a rare “breed” of evolutionists, but evolutionists at last –.
At this stage of my argumentation you might think I have lost my mind for stating Jehovah’s Witnesses are evolutionists, but this might be because you are thinking as the WT has taught you to think. The WT has presented a distorted view of the theory of evolution. For this particular view, the theory of evolution is very broad, it is said to explain the origin of the universe (with its millions of stars and planets), the origin of life on earth, and at last the origin of the species, including humankind. Besides, the WT adds philosophical components to it such as that evolution and science denie the existence of God (when in fact science does not denies or affirms the existence of God as is not a subject that can be studied through the scientific method). The theory of evolutiondoes not try to explain all the above. In brief, it just focuses on how species change to adapt to its environment (I’m not an expert on this field so excuse any misrepresentation).
So, do Jehovah’s Witnesses believe in the true meaning of the theory of evolution? Yes, they do. But, they take the stand that evolution started after the flood of Noah’s days. They are forced to take this stand because the Ark that Noah supposedly built could not accommodate the high number of species that populate the earth today. It is just physically impossible. Then, the only possible solution to this dilemma was for them to accept that a much reduced number of species were in the Ark, and that from these few the rest of the species evolved. Therefore, in my opinion, they can be considered to be "post-flood evolutionists".
Can I produce any proof of this? Well consider what “Insight on the Scriptures”, under the heading “Ark” says:
“It has been estimated by some that the hundreds of thousands of species of animals today could be reduced to a comparatively few family “kinds”—the horse kind and the cow kind, to mention but two. The breeding boundaries according to “kind” established by Jehovah were not and could not be crossed. With this in mind some investigators have said that, had there been as few as 43 “kinds” of mammals, 74 “kinds” of birds, and 10 “kinds” of reptiles in the ark, they could have produced the variety of species known today. Others have been more liberal in estimating that 72 “kinds” of quadrupeds and less than 200 bird “kinds” were all that were required. That the great variety of animal life known today could have come from inbreeding within so few “kinds” following the Flood is proved by the endless variety of humankind—short, tall, fat, thin, with countless variations in the color of hair, eyes, and skin—all of whom sprang from the one family of Noah.” (Bold and underlined mine)
My questions to WT: Do God supervised this process, or species between each “kind” evolve by their own? Without an answer to this question, can you be confident to raise the question “Was it designed?” in Awake magazine’s articles?