Creatures both big and small made the list of the top 10 most intelligent organisms on the planet, proving that bigger isn't always better when it comes to brains.
The new list, created by neuropsychiatrist Jon Lieff, includes animals that have been widely known for their smarts, as well as some surprising entries.
Boston-based Lieff, who is a past president of the American Association for Geriatric Psychiatry, specializes in the interface between psychiatry, neurology, and medicine. Such interdisciplinary research is leading to a better understanding on how human and other mammal brains age, which may shed light on treatments for common disorders, such as dementia.
Included on the list are bees, which Lieff said use symbolism and abstract concepts to solve problems in their daily lives.
"They have a kaleidoscopic memory of every flower for miles, and learn from wise elders where the best flowers are," he told Discovery News. "Bees self medicate in their hives in different ways, and engineer the very complex honeycomb structures that are the most efficient possible for honey storage."
Faces of Bees, Flies and Friends: Photos