BBC Earth is back with another excellent special, this time focusing on the intriguing creature of the octopus.
Octopuses are intelligent, with nine brains, half a billion neurons in their arms, and three hearts. They can also adapt to different colors and textures in camouflaging with their surroundings. Check out the rainbow octopus!
Alien-like, it is also believed that octopuses have a consciousness.
A professor develops an extraordinary relationship with an octopus when he invites it to live in his home. The octopus, called Heidi, unravels puzzles, recognises individual humans and even watches TV with the family.
The episode also shows remarkable behaviour from around the world – from the day octopus, which can change colour and texture in a split second, to the coconut octopus, which carries around its own coconut shell to hide in. But most fascinating of all is seeing how Professor David Scheel and his daughter Laurel bond with an animal that has nine brains, three hearts and blue blood running through its veins.