Gorillas at Atlanta zoo learn to make new sound to capture zookeepers' attention — it's called a "snough"

Roberta Salmi, a primatologist at the University of Georgia, has discovered a new sound that's being made by gorillas at Zoo Atlanta. Salmi describes it as a "snough" – a cross between a sneeze and a cough. The gorillas make the noise, which has never been observed in the wild, when zookeepers with food are close by. — Read the rest