CHIMP researchers have discovered a lexicon of 66 gestures, 54 of which are jokes at the expense of Sir David Attenborough.
Scientist Emma Bradford said: “They have five different gestures to make fun of Attenborough’s high-waisted trousers, 10 laughing at his plummy accent, and three specific gestures to compare him unfavourably to his brother’s performance in Jurassic Park.
“Attenborough is the main constant in chimps’ lives. And it seems they hold him in low esteem.”
The study looked at more than 5,000 incidents and found that even when threatened by predators, chimp communities would still send youngsters down to ruin takes by pointing their arses at the camera.
Researchers believe the finger-circle gesture for wanker, frequently used by the chimps, was not created by parallel evolution but was picked up from BBC cameramen.