A tad more violent than the usual covers.
This issue, Superboy meets Jaguar Boy. Was DC using this as what they call a back door pilot? Jungle comics were starting to come in vogue with the ever-popular Tarzan and Sheena joined by Nyoka and soon many, many more. Maybe DC was looking for their own jungle character? If so, as far as I know, Jaguar Boy did not return.
Below is an ad for one of my personal favorite series from this period--Howie Post's JIMMINY AND THE MAGIC BOOK. He was in MORE FUN COMICS and later WORLD'S FINEST. Wish DC would do a paperback reprint of all the Jimminy stories.