Octopuses are often considered to be one of the most intelligent invertebrates on the planet. They have been observed using tools, solving complex puzzles, and even displaying a form of playfulness.
In fact, octopuses have been known to open jars from the inside by unscrewing them with their tentacles. This level of problem-solving ability is unheard of in any other animal, let alone an invertebrate.
Elephants are known for their exceptional memory and ability to communicate with each other over long distances. They have been observed displaying empathy towards each other, and even mourning the death of their loved ones.
In addition to these impressive cognitive abilities, elephants also possess a highly developed sense of self-awareness. They are able to recognize themselves in mirrors and use them to practice social behaviors.
Dolphins are often considered to be one of the most intelligent animals on the planet. They have been observed using complex vocalizations to communicate with each other, and even displaying cultural behaviors.
In fact, dolphins have been known to help other animals in distress, including humans. They have been observed guiding lost or injured animals back to their groups.