By Victoria Bell For Mailonline
Published: 15:05 GMT, 14 March 2019 | Updated: 16:51 GMT, 14 March 2019
Remote camera traps planted deep in the African jungle have given a fascinating insight into the behaviour of wild apes.
The apes poked at them, stared at them, and tried to bite them, but responses varied between species and individuals.
Chimpanzees seemed unfazed by the camera traps, while gorillas and bonobos were more likely to show a response.
Bonobos, found in the Democratic Republic of Congo, appeared to be the most wary around the new objects.
Researchers said their reactions suggest scientists should give wild animals time to get used to cameras before beginning to collect data.
Remote camera traps planted deep in the African jungle give a fascinating insight into the behaviour of wild apes. Researchers analysed the video captured from the cameras to see how they responded to unfamiliar objects
Ammie Kalan, a primatologist at the Max Planck Institute for Evolutionary Anthropology said the goal was to see if the presence of research equipment had any effect on their behaviour.
Dr Kalan said that they also wanted to see has any effect on their behaviour and if there were any differences among the three great apes.
The responses of 43 groups of naive chimpanzees, bonobos, and western gorillas to remote camera-trap devices, across 14 field sites in Africa, were analysed for the study.
'We were specifically surprised by the differences in reactions we observed between the chimps and bonobos,' Dr Kalan said.
'Since they're sister species and share a lot of the same genetic makeup, we expected them to react similarly to the camera, but this wasn't the case.'
'Yet the bonobos appeared to be much more troubled by camera traps; they were hesitant to approach and would actively keep their distance from them.'
Doctor Ammie Kala, a primatologist at the Max Planck Institute for