chimpanzee

I wanted to give you all a brief update on our reintroduction of Cy’s group (for background, see here and here).

We’ve reluctantly come to the conclusion that, at this time, these efforts are not going to lead to a level of stability that the chimps deserve. Willy B has shown signs of promise. I really think he could succeed in a group where Cy was the only other male. He’s more composed when it’s just him and Cy. Plus, Cy has the patience of a saint and enough confidence to let Willy blow off some steam once and a while without feeling threatened.

But Willy B can’t seem to control himself to the same degree when Terry and/or Gordo are in the group and neither Terry nor Gordo were gifted with Cy’s equanimity. Their reactions to Willy’s prodding only goad him on further. This results in a lot of stress, and the reintroduction process was not successful in changing these fundamental dynamics.

The reality for social animals like chimpanzees is that each individual’s welfare is interdependent and at times even negatively correlated with the welfare of those they live with. Finding a place for Willy in the group of nine opened up a world of opportunities for him but resulted in unresolved tension that impacted the whole group. Sometimes the pieces just don’t fit together in a way that makes sense for everyone. So we’ve got to keep working on the puzzle and try something different.

For now we are keeping them in subgroups that we believe will be stable and meet everyone’s needs as best as possible: Willy B, Honey B, Mave, & Dora in one group and Cy, Terry, Gordo, Rayne, and Lucky in another. There’s less social opportunity for now but more cohesion. Like the reintroduction process, these groupings will let us test out relationships and evaluate social dynamics, but without the same end goal of integrating all nine. What is the goal, then? One possibility is to keep them in these or similar subgroups. Another is to regularly rotate individuals between subgroups in a way that attempts to maintain most of the beneficial relationships that were formed in the larger group. And then there are possibilities to explore with the group on the other side of the building, which will undoubtedly be changing over the coming years as they age well into their 50s. We’re mindful that many of them will have a need for new social opportunities in the not-too-distant future.

It’s been a difficult conclusion to reach when both the chimps and the staff and volunteers have invested so much in making the larger group work. But that’s the nature of working with chimpanzees. You just have to keep moving forward with an open mind. We look forward to updating you along the way.