Yesterday when at my mom's house I looked in her copy of ' "The Truth Shall Make You Free" ' from 1943 and noticed in its chapter about the Earthly creation (in chapter 3 I think) that it also has illustrations of prehistoric animals (and of prehistoric plants).
The WT illustrations (in the old WT books) which depict extinct prehistoric animals and plants during prehuman times, are more scientifically accurate then the more recent WT books which depict modern species of animals as existing during the 5th and 6th creative days of Genesis.
Sadly I notice that the domain of www.strictlygenteel.co.uk (which had copies of old WT literature in it) has been suspended (as of at least two weeks ago). I hope the WT didn't shut it down. If the WT did shut it down it probably means they were noticing me directing attention on the https://www.jehovahs-witness.com site to the old books at www.strictlygenteel.co.uk and to me making quotes from those old books. However, I thought the person who operated www.strictlygenteel.co.uk had permission from the WT. I also thought most, if not all, of the literature which was on that site is in the public domain.