Primate Calls By Kate Arnold1 And Klaus Zuberbühler

In Semantic combinations in primate calls, Kate Arnold1 & Klaus Zuberbühler show that in some cases vocalizations are even combined to form a new signal, and these vocalizations vary depending on the external stimulus. It is clear that primates have a certain ability to understand each other’s calls. Caesar's howl sounds different enough from other noises he makes in the movie, suggesting the director wanted this particular noise to exist as the “I am in danger” noise, just as real-world primates may make a different sound when in immediate danger. Shortly after making this call, Caesar's friend and advisor, Koba, runs over along with some other apes. Koba jumps off of a ledge wielding a spear-like branch, and plants it deep into the bear.

However, the basic idea of using a weapon to hunt is not unseen in the primate world, and their more advanced use in the movie is appropriate when you take into account the more advanced nature of these

Koba by this point, has become upset with Caesar's cooperation with the humans, and decides to confront him at the dam. The two end up fighting until Caesar beats Koba. It is realistic for an alpha male Chimpanzee to get into these battles occasionally, as, “most Chimpanzee aggression is between males and related to male-male competition and rank”(Campbell et Al., 2010:329). However, Koba makes things a little more complicated, because he is not a Chimpanzee. Koba is a Bonobo, which means while his species has much overlap with Chimpanzees, they also have some distinctions. In Bonobo groups, it seems less importance is placed on hierarchy. In addition, the females have a more dominant relationship to the males compared to Chimpanzee females (Campbell et Al., 2010). In addition, wild and captive Bonobos exhibit less aggressiveness when compared to Chimpanzees (Campbell et Al.,2010). Maybe Koba is having a harder time understanding his place because he is used to females running things, but nevertheless, it seems like an interesting decision to make a Bonobo the most aggressive and unruly character in this movie. Bonobo’s also have not been observed exhibiting lethal aggression towards another Bonobo (“What is a Bonobo?”). Luckily for us, Koba can voice his