That artwork from the Ken Ham (the Australian Xian from Answers in Genesis, and Ark Encounter) book is hilarious.
Look closely, and you'll see the serpent in the tree has legs, i.e. there was once a walking snake (uh, I guess no one's ever seen a Kimodo dragon, or lizard?). That way the walking serpent could be cursed by YHWH to lose it's legs, and have to crawl on it's belly....
Obviously that passage is something WTBTS didn't consider when they wrote this:
Awake 1972 7/8 page 5:
"Other creatures,’ as “unreasoning animals,” are not capable of conscious or willful sin against God. Hence their death is simply due to natural processes; the general life-span built into their genetic makeup from the beginning.
SOOOO, if animals are incapable of sin, then why did YHWH curse the "clever" (Hebrew word is 'arum', clever, prudent, even wise) serpent for tricking Adam and Eve?
Apologetists might back-pedal saying the serpent was possessed by Satan, but that's not helping their case: if so, then why did YHWH punish the animal and Adam and Eve, but not Satan?
The story and theology are sooooo freakin' goofy, to keep it afloat is like trying to patch holes in a sinking boat...