<p>Apes in study more likely to choose treats linked to sound of peers having fun, suggesting emotions influence learning</p><p>Orangutans base their food choices on whether others appear to be having a good time, research suggests.</p><p>Scientists studying captive orangutans have found that when the great apes heard the sound of their peers laughing before they searched a bowl for a tasty treat, they valued the reward more highly.</p> <a href="https://www.theguardian.com/science/2026/oct/21/orangutans-prefer-food-laughter-sounds-study">Continue reading...</a>