Camel

The Camel is a humped, long-necked mammal, originally domesticated in the desert regions of the world. Although it has only been seen in two episodes on-screen thus far (not including the never-before-seen in the first Total Drama World Tour aftermath sideshow), it played a major role in Walk Like An Egyptian - Part 2's challenge.

Total Drama World Tour
The camel was first seen in Walk Like An Egyptian - Part 1, as Team Amazon's reward. Unlike the other members of her team, Izzy seemed ecstatic about having a camel, grinning wildly and clapping. The camel seen in this episode was a one-hump camel, indicating that he is a Dromedary, which is the camel commonly seen in Africa and the Middle East.

In Walk Like An Egyptian - Part 2, the camel was first seen at the beginning of the episode. Izzy takes a seat at the throat of the camel, while Gwen sits on the upper back of the camel, Heather sits on the hump of the camel, Courtney sits behind Heather, and Cody hangs onto the backside of the camel. The camel is seen to be gassy, much like the Horse, when it passes gas in Cody's face, making him fall off. At some point during the race, Izzy names the camel "Ruby," assuming it is a female camel. "Ruby" seemed as if she liked Izzy since she let her move her mouth (making it look like she was talking) and tolerated all the times Izzy talked to her in "Camelese." She was also a big help in the second challenge when Izzy asked her where she could find lemonade she took Izzy and her team to the Nile River. Later, at the "Basket Cases" challenge, Team Amazon has trouble loading the camel into the boat, until Alejandro instructs Izzy to help them by speaking to it, after Sierra and Izzy changed teams, sending Izzy to Sierra's former team (Team Chris is Really Really Really Really Hot) and sending Sierra to Team Amazon. The camel even took part in the reprise of the episode, Rowin' Time (by braying twice) making it the first animal to ever take part in a song in Total Drama World Tour, even though all the camel really did was make noises.

"Ruby" appears again in a previously unseen clip in Aftermath: Bridgette Over Troubled Water. Chef approaches her with a ladle and a pan, but Izzy defends her, thinking Chef will try to attack her. After some seconds of quick fighting, Izzy knocks down Chef with a flying kick, and Ruby sits upon his face. Izzy tickles Chef's feet and he says he was just trying to give her some oats, not injure the camel like Izzy assumed.

Trivia

 * It shares a similarity with the horse from Total Drama Action, as it is used for challenges, and constantly passes gas.
 * Izzy is the only character that has been able to communicate with it.