Enlarge / "Resting in contact", primatologist jargon for "getting a cuddle." (credit: Dian Fossey Gorilla Fund) Cantsbee the gorilla was great with kids, which is why it struck gorilla researcher Stacy Rosenbaum as odd when he suddenly started grunting aggressively at his usual gaggle of baby gorilla sidekicks. Cantsbee seemed oddly annoyed by them tagging along behind. “Cantsbee was always incredibly gentle,” says Rosenbaum.