Discover animals with more than one heart, from the three-hearted octopus to multi-hearted worms—evolution’s answer to unique ...

Finally, why do octopuses have blue blood? Are you still wondering why octopus blood is blue and what the three hearts do? Well, the blue blood is because the protein, haemocyanin, which carries ...

With three hearts, blue blood, and the ability to squeeze through tiny spaces, the octopus is one of nature’s most fascinating and intelligent creatures. Its otherworldly features and problem ...

Octopuses are like aliens on Earth: three hearts, blue blood, and the ability to squeeze through a space the size of their eyeball; they can use tools, transform their bodies to mimic other ...

The octopus can produce an endless array of patterns ... With blue blood pumping in their three hearts and an ability to ...