1. Chimpanzees: Known for their problem-solving skills, tool use, and social complexity. They can even recognize themselves in mirrors.
2. Dolphins: Highly social creatures with complex communication systems and impressive spatial memory. They exhibit self-awareness and can learn complex tasks.
3. African Grey Parrots: Highly vocal birds that can mimic human speech and have a remarkable ability to understand and use language.
4. Raccoons: Opportunistic and adaptable, raccoons are known for their dexterity and problem-solving skills. They can open complex locks and even use tools.
5. Pigs: Surprisingly intelligent, pigs have excellent spatial memory and can be trained to play video games. They also exhibit empathy and complex social interactions.
6. Crows: Highly adaptable birds known for their problem-solving abilities, tool use, and social intelligence. They even display a rudimentary understanding of cause and effect.
7. Dogs: Dogs are highly trainable and can learn complex commands. They also show strong emotional bonds with their owners and exhibit self-awareness.
8. Rats: Rats are remarkably intelligent creatures, known for their problem-solving abilities, learning skills, and social complexity.
9. Octopuses: These cephalopods have a complex nervous system and demonstrate incredible problem-solving skills, memory, and even tool use.
10. Elephants: Highly social creatures with strong memory and complex communication systems. They display self-awareness, empathy, and even grief.
It's important to note that this is just a starting point, and many other animals exhibit impressive cognitive abilities. The study of animal intelligence is an ongoing field with new discoveries being made all the time.