6. Ravens
Often associated with omens due to their distinct call and jet-black appearance, ravens are some of the most intelligent animals in the world. Moreover, these birds are living proof that it’s not the size of the brain that counts but how it’s used.
They learn quickly, with studies suggesting four-month-old ravens could be as smart as some adult apes. They have demonstrated their impressive ability to plan ahead and handle abstract concepts better than human toddlers.
In one experiment, ravens were found to plan ahead by up to 17 hours, choosing a key from a bunch of items that could be later used to open a box with a treat inside. In fact, the ravens chose the key 90% of the time. This demonstrates that ravens are some of the most intelligent animals in the world.
