Lesser known facts about octopuses

 Here are some of the interesting facts  -----

1.   Three hearts and blue blood

                    Octopuses have 3 hearts . 2 of them send blood to gills and the third one pumps blood to rest of the body.

                     Blood of octopuses is blue because their blood carries copper instead of oxygen.

2.  Smart way to escape danger

                       If octopus feel scared ,  it shoots out a cloud of dark ink.  This fog hides octopus and confuses predators.

3.   Octopuses have venom 

                       Octopuses have venom, they use it to stun their prey before eating but it is not fatal to humans.

4.  Masters of disguise 

                          Octopuses can quickly change the colour, pattern and textures of their skin.

5.  Arms that can think for themselves 

                         Each of the arm can move on their own as if having own brain.