4. Dolphins
Dolphins can perform many impressive behaviors. They are capable of behavioral mimicry and are shown to identify themselves in a mirror; they are aware of their own recent behaviors; and can even experience emotions.
5. Gorillas
Just like chimpanzees, gorillas are also very intelligent, but there are many differences between these two species. Gorillas are calmer, more aloof, and patient. They are less flexible and inquisitive than chimpanzees, and they don’t show the same feeling to imitate.
6. Elephants
These giant animals are among the smartest creatures on Earth. They are skilled in a range of emotions, including joy, playfulness, grief, and mourning. Elephants also has an ability to learn new facts and behaviors, mimic sounds they hear, self-medicate, play with a sense of humor, perform creative activities and show empathy and self-awareness.
