Does it matter if the camera is shaky?
Does it matter if the angle is from underneath?
Does it matter if branches are in the way?
(this clip actually has two young bonobos gesturing)
Do the branches matter less if the movement is bigger?
Please give me feedback in the blog comments or on Twitter:
Were any of those gestures impossible to spot? Which condition was the hardest? After I hyped up the viewing difficulty at the top of this post, was it easier or harder than you expected to spot the gesture?
We are aiming to have the full experiment online by July, so WATCH THIS SPACE. We are also creating a website to host video examples of each gesture type for both bonobos and chimpanzees, so that you can finally actually see what the different gestures look like.