I first noticed this baboon because he was staring intently in one direction for some time. If you can spot this behaviour, it can tell you more about what’s going on than we can see or hear.

Baboons have fantastic eyesight and rely on it more than any other sense. So if they tell you there’s danger, it possible that we can see it too. In this case, he had sensed something and was assessing whether it was worth alerting the rest of the troop.

As often happens, in the end it wasn’t anything more sinister than a distant Warthog which had caught his attention. But his prolonged concentration allowed me to drop down out of my seat and take some photos of him surrounded by a sea of grass.