Man swimming next to large octopus

Why Do Octopuses Have Three Hearts and What Does Each One Do? 

If you put your hand over your chest, you can feel a heartbeat from a single heart. Now, imagine what it would be like to feel three beating hearts – all at the same time.   That’s exactly how many hearts an octopus has, and these clever cephalopods need all three to survive. Living in the ocean can be tough, but […]

Why Do Octopuses Have Three Hearts and What Does Each One Do?  Read More »