If you're looking for manga similar to Jungle Taitei, you might like these titles.
Chippo-kun is an unusual kitten. He protects mice – because they raised him!
Two separate tales set in Africa – one the story of two filmmakers who discover a lost city while they are looking for locations to film, and another about two explorers searching for a gold statue that might involve people from the moon and might also involve a Tarzan-like boy named Monster.
Silver, from the moment he was born, was destined to be a hunting dog. Named for the silver stripe on his body, his fate is sealed when his father is killed by the ferocious bear Akakabuto -- to be the one who kills Akakabuto. From that moment on, he vows to grow up, to become a strong enough dog, to slay the bear who stole his father's life.