-they are very loving animals with three hearts, including a central heart that pumps blood throughout the body and two smaller hearts that pump blood to the gills (Nixon & Messenger, 1977)

- they are in the Cephalopoda class 

-they have eight legs, hence their name beginning with "octo-"

-they use their suction cups to taste and touch different things  (Mather & Anderson, 2015)

-they are among the most intelligent invertebrates, with complex nervous systems and problem-solving abilities (Mather & Anderson, 2015). 

-when threatened, octopuses release a dark ink cloud to confuse predators while they make a quick escape (Hanlon et al., 2008) 

-octopuses can rapidly change their skin color and texture to blend into their surroundings (Hanlon et al., 2008) 

-they are are generally solitary animals, except when breeding. After mating, the male dies shortly after, while the female cares for her eggs until they hatch (Boyle, 1983)

-they tend to only live for 3-5 years, but they play a vital role in maintaining healthy ocean ecosystems (Norman et al., 2002)