* Both octopuses and humans have centralized nervous systems. This means that their brains are the main control centers for their bodies, and they receive information from their senses and send out instructions to their muscles.
* Both octopuses and humans have complex brains. The octopus brain is made up of about 500 million neurons, while the human brain has about 100 billion neurons. However, octopus neurons are much larger than human neurons, and they are packed more densely together. This means that the octopus brain is actually more compact than the human brain.
* Both octopuses and humans have highly developed learning and memory abilities. Octopuses can learn to solve problems, and they can remember things for long periods of time. They can also communicate with each other using complex signals.
* Both octopuses and humans are social animals. They live in groups and interact with each other in a variety of ways.
