Archive for April 12th, 2017

The pant-hoot vs the pant-grunt, as demonstrated by Burrito and Jody

Wednesday, April 12th, 2017

Sometimes it takes a little bit of play-by-play commentary to understand chimpanzee behavior..

In this video you can see Burrito displaying and pant-hooting. A chimpanzee displays when they want to look tough and intimidating to others. You will notice Burrito’s hair is erect (making him look fluffy) and he stands bipedal to make himself appear larger. A pant-hoot is a low and breathy call that rises into a louder scream-like call, and it often accompanies a display.

This particular display happened shortly after a small fight between the chimpanzees had just ended. As a fight winds down, the chimps tend to separate and let off the last little bit of “steam” they built up during the fight.

After Burrito’s display, you will see Jody approaching him and doing a lot of submissive behavior. You can see she stays low in a crouch and bobs up and down when approaching him. You can also hear her try to placate his building display with deep rapid pant-grunts. I think J.B. mentioned a while ago, but but this kind of submissive behavior isn’t necessarily a sign that Jody deeply respects Burrito, but more that she wants to avoid getting smacked during his charging display.