An artificial boundary is a boundary made by humans, examples include dams, the fence at the border between the U.S and Mexico. A natural boundary is a boundary made by nature, a boundary that happens naturally, examples include rivers, mountains and such.
Legends of Chima. Legends of Chima is a CGI animated television series based on the LEGO Legends of Chima series of LEGO sets. It began with 2 episodes airing on January 16, 2013, with the Season 1 finale on December 5, 2013. On March 15, 2014, season 2 premiered on Cartoon Network and ended on November 22, 2014.
Now I know that for a filler arc, Chikara is looked upon favorably by most, but I couldn't stand it, the plot holes (KCM Naruto.... lol), Hidan being edo-tenseied despite not being dead (I know, I know, it wasn't a real edo just a snake clone or whatever, but still....), boring story, inconsistent animation (To say that the battle scenes in this were bad would be a lie, but the way Kabuto looked was shocking, the snakes looked completely out of place too.), the whole creepy vibe I was ...