Octopus
Unlike the birds, the Octopus has eight limbs and legs that connect with their heads via their nerve systems scattered throughout the body. They also happen to be among the most intriguing creatures on the planet. The wounds left by these octopi on the whales and fish they feast on are a clear indication of their existence.
When it comes to aquatic creatures, this is one of the most widely distributed species on the planet. Put another way, the appendage allows them to dig deep into their prey. The octopi are among the most fascinating species on the face of the earth.