She must be one ugly primatologist to stop them dead in their tracks and send them fleeing."... They were coming in for the kill. I was directly in front of them, and as soon as they saw my face, they stopped and disappeared."
She describes her encounter with them: "Four suddenly came rushing out of the bush towards me," she told New Scientist.
"If this had been a bluff charge, they would have been screaming to intimidate us. These guys were quiet. And they were huge. They were coming in for the kill. I was directly in front of them, and as soon as they saw my face, they stopped and disappeared."