All of the animals featured were all variations of Ren and Stimpy.
The Yak has five toes, instead of 3 or 4 like the rest of the characters in the show.
The sound the Yak makes when he runs is someone shaking around a balloon full of water.
The gigantic "brainiac" aliens were designed by John Kricfalusi after a rare children's game called "Captain Quatem" which was supposed to teach kids the dangers of drugs.
"Untamed World" was Lacewood Productions's final work on the series. Studio director Jamie Oliff declined to continue working on the series, as he was unhappy with Lacewood's output.